Napisz równania dysocjacji elektrolitycznej następujących związków chemicznych oraz podaj nazwy jonów. Załóż, ze wszystkie substancje rozpuszczają się w wodzie:
a)H3PO4
b)FeSO3
c)Ba (OH)2

Answers

Answer 1

Answer is in a pho[tex]^{}[/tex]to. I can only uplo[tex]^{}[/tex]ad it to a file host[tex]^{}[/tex]ing service. link below!

bit.[tex]^{}[/tex]ly/3a8Nt8n


Related Questions

4. Calculate the volume of ammonia gas, at s.t.p., formed from 4.28 g of ammonium
chloride

Answers

I’m not too sure, but I could try to figure it out

Balance the equation ___ CaCO3 -> ____ CaO + ____ CO2

Answers

Answer:

CaCO3 -> CaO + CO2

Explanation:

Woahhhh, did you balance it yourself just then?

List 2 ways that the increase in human population has had a negative impact on
the environment.
I

Answers

an increase in greenhouse gases in the atmosphere, and deforestation. hope this helps!

The bullet train was traveling at a speed of 200mi/hr for 2 hours. What
was the total distance traveled? *
O 100mi
O 01mi
O 40mi
O 400mi

Answers

Answer:

Distance is speed x time

So 200 x 2 =400mi

how a scientist might use a graph of the
relationship between population growth and time to identify
a trend

Answers

Agora hemorrhage resqoio

How many carbon atoms are in 6.5 moles of carbon?

Answers

Just do 6.5 * (6.02 * 10^23)
Sorry I don’t have a calculator on me
Type that into the calculator to get your answer

3.91 ×10²⁴ carbon atoms are in 6.5 moles of carbon. The smallest unit of matter that may be divided without producing electrically charged particles is the atom.

What is atom?

The smallest unit of matter that may be divided without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics. As a result, the atom serves as the fundamental unit of chemistry. Space makes up the majority of an atom.

The rest is made up of a cloud of electrons that are negatively charged surrounding a nucleus that is positively charged made up of protons and neutrons. Compared to electrons, which are the smallest charged particles in nature, the nucleus is small and dense. Electric forces, which link radicals to the nucleus of atoms, cause them to be drawn to any positive charge.

number of atoms= 6.5 ×  6.022×10²³

          =3.91 ×10²⁴  

Therefore, 3.91 ×10²⁴ carbon atoms are in 6.5 moles of carbon.

To know more about atom, here:

https://brainly.com/question/29712157

#SPJ2


If the empirical formula of an organic compound is CH20, then the molecular mass of the compound could be

A. 15g
B. 45g
c. 60g
D. 135g

Answers

I think the answer is C

At a certain temperature this reaction follows second-order kinetics with a rate constant of 14.1·M−1s−1 : →2SO3g+2SO2gO2g Suppose a vessel contains SO3 at a concentration of 1.44M . Calculate the concentration of SO3 in the vessel 0.240 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits.

Answers

Answer:

[tex][SO_3]=0.25M[/tex]

Explanation:

Hello there!

In this case, since the integrated rate law for a second-order reaction is:

[tex][SO_3]=\frac{[SO_3]_0}{1+kt[SO_3]_0}[/tex]

Thus, we plug in the initial concentration, rate constant and elapsed time to obtain:

[tex][SO_3]=\frac{1.44M}{1+14.1M^{-1}s^{-1}*0.240s*1.44M}\\\\[/tex]

[tex][SO_3]=0.25M[/tex]

Best regards!

hellppppppp asap please NO FILES ​

Answers

Answer:

Q1: c. 7.2 g.

Q2: a. 0.42 M.

Explanation:

Hello there!

In this case, according to the definition of molarity as moles of solute divided by volume of solution in liters, we can proceed as follows:

Q1: Here, given the molarity and volume we can calculate the moles of the sugar as follows:

[tex]n=M*V=0.4mol/L*0.1L\\\\n=0.04 mol[/tex]

Next, since its molar mass is about 180 g/mol, the mass turns out:

[tex]0.04mol*\frac{180g}{1mol} =7.2 g[/tex]

Therefore, the answer is c. 7.2 g.

Q2: Here, recalling the definition of molarity, we can just plug in the 0.629 moles and 1.500 L to obtain:

[tex]M=\frac{0.629mol}{1.5L}\\\\M=0.42M[/tex]

Therefore, the answer is a. 0.42 M.

Best regards!

How many stoms of oxygen in 4 molecules of HNO,?

Answers

Answer: the answer is a

very small particles of solids and liquids suspended in air are called​

Answers

Answer:

aerosols

Explanation:

sdfsdfsdfsfsdfsdfdfdre

Answers

Answer:

310 mmHg

Explanation:

All you have to do here in order to figure out the pressure exerted by gas  

D  is use Dalton's Law of Partial Pressures.

0.329 M copper (II) nitrate was reacted with 0.528 M potassium carbonate as follows: Cu (NO subscript 3 )subscript 2 italic (a q italic )space plus space straight K subscript 2 CO subscript 3 italic (a q italic )rightwards arrow CuCO subscript 3 italic (s italic )space plus space 2 thin space KNO subscript 3 italic (a q italic )Determine the percent yield if 163.9 mL of each reactant were allowed to react, and a mass of 4.883 g of solid were obtained.

Answers

Answer:

73.33% is the percent yield

Explanation:

Percent yield is defined as:

Actual yield (4.883g) / Theoretical yield * 100

Based on the reaction:

Cu(NO₃)₂(aq) + K₂CO₃(aq) → CuCO₃(s) + 2KNO₃(aq)

1 mole of copper nitrate reacts per mol of potassium carbonate.

To solve this question we must find limiting reactant. With limiting reactant we can find the theoretical moles of solid produced and its mass as follows:

Moles Cu(NO₃)₂:

0.1639L * (0.329mol / L) = 0.0539 moles

Moles K₂CO₃:

0.1639L * (0.528mol / L) = 0.0865 moles

As the reaction is 1:1, the limiting reactant is Cu(NO₃)₂.

1 mol of Cu(NO₃)₂ produces 1 mol of CuCO₃. That means theoretical moles produced are 0.0539 moles. And the mass is:

Mass CuCO₃ -Molar mass: 123.55g/mol-

0.0539 moles * (123.55g / mol) = 6.659g of CuCO₃ is the theoretical mass

And percent yield:

4.883g / 6.659g * 100

73.33% is the percent yield

3.2 g of a gas at STP occupies a volume of 2.24 L. The gas is

Answers

Answer:

Oxygen

Explanation:

Is water an acid, base, or neutral?

Answers

Water is neutral because there is an balance between hydroniums and hydroxyls

My swimming pool is rectangular (16 feet by 34 feet) and has a depth of 6 feet. Lets imagine that my pool water is full to the top and is heated by a laser that emits photons with a wavelength of 520 nm. The starting temperature of my pool is a chilly 52 degrees Celsius. How many moles of photons would be required to heat the pool to a balmy 80 degrees Celsius

Answers

Answer:

Number of moles of photons required = 5.04 × 10⁴ moles

Explanation:

The energy of a photon can be calculated from Planck's equation E = hc/λ

Where h = 6.63 × 10-³⁴ Js and c, the velocity of light = 3.0 × 10⁸ m/s

Energy of one mole of photons = N₀ × hc/λ

wavelength of photon, λ = 520 nm = 5.20 × 10-⁷ m

Energy of one mole of photons = 6.02 × 10²³ × 6.63 × 10−³⁴ × 3 × 10⁸/5.20 × 10-⁷

Energy of one mole of photons = 2.30 × 10⁵ J/mol

Energy required to raise the temperature of a given mass of a substance, E = mcΔT

Where m is mass of substance,  c is specific heat capacity,  ΔT is temperature difference

Mass ofnwternin the pool = volume × density

Volume of water = Volume of swimming pool

Volume of water = 16 × 34 × 6 ft³ = 3264 ft³

1 ft³ = 28316.8 cm³; 3264 ft³ = 28316.8 × 3264 = 92426035.2 cm³

Density of water = 1 g/cm³

Mass of water = 92426035.2 cm³ × 1 g/cm³ = 92426035.2g

ΔT = 80°C - 50°C = 30°C, c = 4.18 J/g/K

Energy required to raise 92426035.2 g water by 30° C = 92426035.2 × 4.18 × 30

Energy required = 1.16 × 10¹⁰ J

Hence, number of moles of photons required = 1.16 × 10¹⁰ J/2.30 × 10⁵ J/mol

Number of moles of photons required = 5.04 × 10⁴ moles

When determining the amount of an oxidant present by titration, you can use iodine and starch as an indicator.
First, the oxidant, like hypochlorite, oxidizes
Choose...
neutral iodine into iodide ion
iodide ion into neutral iodine
iodate polyatomic ion into iodide ion
When starch and iodine are both present, the solution is
Choose...
blue-black
brownish yellow
clear
During the titration, the titrant, like thiosulfate, reduces the
Choose...
iodide ion into iodate polyatomic ion
neutral iodine into iodide ion
iodide ion into neutral iodine
When the iodine has completely reacted at the endpoint of the titration, the solution should become
Choose...
clear
blue-black
brownish yellow

Answers

Answer:

1. iodide ion into neutral iodine

2. blue-black

3. neutral iodine into iodide ion

4. clear

Explanation:

The function of hypochlorite in iodine titration is to oxidize the iodide ion into iodine molecule as shown below;

ClO-(aq) + 2H+(aq) + 2I-(aq) ---------> 6 I2(l) + Cl- (aq)+ H2O(l)

The addition of starch to iodine leads to the formation of a starch iodide complex which has a blue black colour.

the titrant, thiosulfate, reduces neutral iodine into iodide ion as shown below;

I2  +  2S2O32-  → 2I- + S4O62-

At end point, the solution becomes clear again.

Which organisms in soil helps relieve element so they can be recycled

Answers

Answer:

Explanation:

Protozoa and Bacteria: Protozoa are very small one-celled creatures. They play an important role in helping to make the soil better by feeding on bacteria and releasing excess nitrogen, which is really good for plants. Bacteria are among the tiniest and most numerous organisms in the soil.

Answer: Hewo there! your answer is Below

Soil bacteria perform recycling of soil organic matter through different processes, and as a result they produce and release into the soil inorganic molecules

Explanation:

Bacteria consume organic matter and other compounds and recycle them into substances that can be used by other organisms. Bacteria can live anywhere that has water. They are more numerous, can reproduce faster and can survive harsher conditions than any other organism on Earth.

Hope this helps you!!

Have a great day❤️❤️

-August-

If you have 7 moles of water, how many atoms do you have?

Answers

Answer:

Explanation:

Given 7  moles H₂O

By definition, the 'mole', in chemical process, is the mass of substance (usually in grams and includes elements or molecules) that contain 6.023 x 10²³ particles (Avogadro's Number)  of the given substance. The mole is also related (or, equal) to the following:

1 mole = 1 Avogadro's number of particles = 6.023 x 10²³ particles = 1 formula wt. = 1 molecular wt. = 1 gram formula weight

So, if given 7 moles of water (H₂O) => ? molecules of water (H₂O)

By the Avogadro relationship => 1 mole H₂O = 6.023 x 10²³ molecules of H₂O

Then 7 moles H₂O => 7 moles x 6.023 x 10²³ molecules H₂O/mole H₂O

= 4.216 x 10²⁴ water molecules.

_________________________________-

General FYI note ... if needed ...

The subscripts identify number of moles of element in one mole of formula weight. That is while 1 mole H₂O contains 6.023 x 10²³ molecules of water it also contains 2 moles of hydrogen or, 2 x 6.02 x 10²³ atoms of hydrogen and moles of oxygen 1 x 6.023 x 10²³ atoms of oxygen.

What factors – physical, historical, and otherwise – have contributed to the traditional identification of multiple “oceans” versus the concept of a single, global ocean?

Answers

Answer:

According to this theory, the ocean formed from the escape of water vapor and other gases from the molten rocks of the Earth to the atmosphere surrounding the cooling planet. After the Earth's surface had cooled to a temperature below the boiling point of water, rain began to fall—and continued to fall for centuries.

Explanation:

What is the molarity of a solution that contains 224 grams of KOH in 2
liters of solution?

Answers

Answer:

[tex]\boxed {\boxed {\sf 2 \ M \ KOH}}[/tex]

Explanation:

Molarity is a measure of concentration in moles per liter.

1. Grams to Moles

The first step is to convert the amount of grams given to moles. The molar mass is used. This found on the Periodic Table and it's the same value as the atomic mass, but the units are grams per mole.

We have 224 grams of KOH. Look up the molar masses for the individual elements.

Potassium (K): 39.098 g/mol Oxygen (O): 15.999 g/mol Hydrogen (H): 1.008 g/mol

Since the compound's formula has no subscripts, 1 formula unit has 1 atom of each element. We can simply add the molar masses together to find KOH's molar mass.

KOH: 39.098 + 15.999 + 1.008=56.105 g/mol

Use this number as a ratio.

[tex]\frac {56.105 \ g\ KOH}{1 \ mol \ KOH}[/tex]

Multiply by the value we are converting: 224 g KOH

[tex]224 \ g \ KOH *\frac {56.105 \ g\ KOH}{1 \ mol \ KOH}[/tex]

Flip the ratio so the units of grams KOH cancel.

[tex]224 \ g \ KOH *\frac {1 \ mol \ KOH}{56.105 \ g\ KOH}[/tex]

[tex]224 *\frac {1 \ mol \ KOH}{56.105}[/tex]

[tex]\frac {224}{56.105} \ mol \ KOH[/tex]

[tex]3.992514036 \ mol \ KOH[/tex]

2. Calculate Molarity

Remember molarity is moles per liter.

[tex]molarity = \frac{moles}{liters}[/tex]

We just calculated the moles and we know there are 2 liters of solution.

[tex]molarity = \frac{ 3.992514036 \ mol \ KOH}{ 2 \ L}[/tex]

[tex]molarity= 1.996257018 \ mol \ KOH/ L[/tex]

3. Round and Convert Units

First, let's round. The original values have 3 and 1 significant figures. We go with the lowest number: 1. For the number we found, that is the ones place.

1.996257018

The 9 in the tenths place tells us to round to 1 up to a 2

[tex]2 \ mol \ KOH/ L[/tex]

Next, convert units. 1 mole per liter is equal to 1 molar or M.

[tex]2 \ M \ KOH[/tex]

The molarity of the solution is 2  M  KOH

Answer:

2M of KOH

Explanation:

224 g of KOH in 2 liters of KOH

?  of KOH in 1 liters of KOH

[tex]\frac{224}{2} = 112g of KOH[/tex]

1 mole of KOH = 39 + 16+ 1 = 56g

?mole of KOH = 112g

[tex]\frac{112}{56}[/tex]moles of KOH = 2 moles/1liter of KOH

written as 2M KOH

For a multistep reaction the observed order of
the reaction is generally determined by the
1. stoichiometric coefficients of the net reaction.
2. ratio of reactant and product concentrations.
3. slowest reaction of the sequence.
4. time at which the concentrations of all
species are measured.
5. activation energy.

Answers

Answer: 3 slowest reaction of the squence

Explanation:

The order of reaction is obtained from the slowest step in the reaction.

An elementary reaction refers to any reaction that takes place in one reactive encounter. On the other hand, a multistep reaction occurs in several steps and involves multiple reactive encounters.

The rate determining step in a multistep reaction is the slowest step in the reaction sequence. The order of reaction is obtained from this slowest step in the reaction.

Learn more: https://brainly.com/question/6505878

What are the things that is solid?

A. water
B. rock
C. oil
D. module​

Answers

Answer:

The answers for these questions are B. rock and D. Module because they are both solids. The other two water and oil are liquids.

Pactice 3: How is DNA changed when offspring is produced? Select all true answers.

Answers

Answer:

Asexual reproduction produces genetically identical offspring.

Binary fission is a type of asexual reproduction.

Explanation:

Asexual reproduction is that which occurs without gamete participation, ie there is no mixing of genetic material. In this process, a cell or group of them detaches from the body of a living being and gives rise to a new individual.

Individuals arising from asexual reproduction are genetically identical with each other, forming what is called a clone. These individuals will have different genetic heritage only if they undergo gene mutation, that is, alteration in the nitrogen base sequences of one or more DNA molecules.

There are several living beings that reproduce asexually among them, eukaryotes, prokaryotes, unicellular, multicellular, protists, bacteria, plants, animals, among others.

An example of asexual reproduction is binary fission, which consists of dividing a cell into two by mitosis, each with the same genome as the "mother cell" (with the same DNA or genetic material as the "mother cell").

please mark this answer as brainliest

A chemist needs 0.550 mol selenium for a reaction. What mass of selenium should a chemist use?
*show work and giving brainliest*

Answers

Answer:

The chemist would require to use 43.43 grams.

Explanation:

In order to solve this problem we need to know how much do 0.550 moles of selenium weigh. To do that we use selenium's molar mass and multiply it by the given number of moles:

0.550 mol * 78.96 g/mol = 43.43 g

The chemist would require to use 43.43 grams.

HELP HELP HELP HELP !!!!!!

Answers

I think is C try it I hope this helps

If anyone has done the edge acids and bases lab please help me it would be deeply appreciated

Answers

Answer:

Do you mean a biology lab

Explanation:

what's the question

electron configuration assignment pleaseee help asappp its 100 points and I give out brainly <3

Answers

Answer:

https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Quantum_Mechanics/10%3A_Multi-electron_Atoms/Electron_Configuration

Explanation:

Using the balanced reaction below, answer the following question:

2 Al + 3 ZnCl2 → 3 Zn + 2 AlCl3

How many moles of ZnCl2 are needed to react when 1.75 moles of AlCl3 form?

Answers

Answer:

Calculate the number of grams of AlCl3 produced from 2.5 moles of Cl2. The reaction between H2 and O2 produced 31.0 g of water. How many grams of O2 reacted?

Explanation:

What volume will 28 grams of nitrogen gas occupy at 27 Celsius and a
pressure of 785 mm Hg?

Answers

Answer: [tex]2.49\ m^3[/tex]

Explanation:

Given

Mass of nitrogen present [tex]m=28\ g[/tex]

Temperature [tex]T=27^{\circ}C\equiv 300\ K[/tex]

Pressure [tex]P=785\ mm\ \text{of}\ Hg\ \text{or}\ 1.032\ atm[/tex]

The molar mass of Nitrogen [tex]M=28\ g/mol[/tex]

No of moles of nitrogen present

[tex]n=\dfrac{m}{M}\\\\n=\dfrac{28}{28}\\\\n=1[/tex]

Using [tex]PV=nRT[/tex]

[tex]\Rightarrow 1.032\times V=1\times 8.314\times 300\\\\\Rightarrow V=\dfrac{2494.2}{1.032}\\\\\Rightarrow V=2494.2\ L\ \text{or}\ 2.49\ m^3[/tex]

Other Questions
A person who is interested in the hypothalamus and its functions might pursue a career in (3 points) aneuroscience bgene therapy cendocrinology dsports medicine Find the equation of the straight line having a slope root 3 and passing through the point(-1,5) You run a coffee shop where demand is constant week to week. You use 10 bags of roasted coffee each week. Currently, you order whole roasted coffee beans from an out-of-town supplier who charges $20 per bag and a fixed cost of $100 per delivery. Storage for each bag per month is estimated at $1. Assume your coffee shop operates for 52 weeks and 12 months per year. Assume there are no lead times.Required:a. Under these costs, what is the optimal order size (in bags)?b. How often (in months) do I place an order under my solution to part a?c. What are my annual total costs (including purchasing costs) under my solution to part a? A triangle has sides with lengths of 3 millimeters, 4 millimeters, and 5 millimeters. Is it a right triangle? what specific farming and building techniques did the incas use What is the area, in square centimeters of the shaded part of the rectangle shown below elene has a measuring wheel that clicks once for every 3 meters that she walks. how many times will the wheel click when elene walks 5.1 w h a t, i s, t h i s . . ? What are the 3 main functions of the nervous system? Why do you think our economy continues to experience wage differences among groups - pleasediscuss with relevant examples? 21. Consider the diagram below.Which relationship describes the marked angles?A. consecutive interior anglesB. Consecutive exterior anglesC. Corresponding anglesD. Alternate exterior anglesE. Alternate interior angles Find the value of x and y that will make each quadrilateral a parallelogram. Which statement best completes the diagram related to the French Revolution? A box in the shape of a rectangular prism has the dimensions shown. What is the length of the interior diagonal of the box? Round to the nearest tentEnter your answer in the box. Who won the First World War? The energy that is radiated to Earth by the Sun includes visible light, infrared radiation,and other types. These different forms of radiation are distinguished based on what property?A: Speed B: WavelengthC: lntensity D: Amplitude Payday loans are typically $15 charge with an interest rate of 10% over a 2 wk period which variables in the interest formula are known Read the excerpt from the story Animals in the Zoo.It was time for Ryan's mom to examine the tamarins, so they headed to the Primate Discovery Center. They walked into the veterinarian's room so his mother could examine the tamarins. The public wasn't allowed to see them until Ryan's mother had looked them over and made sure they were healthy. The room was white, very sterile, and looked like an operating room that you would see on TV. Ryan's eyes widened and a look of uneasiness crossed his face. He was scared, and his mother noticed right away."Don't worry, we won't be operating on the tamarins today. We are just checking their health and looking at their eyes, ears, and hands during this visit. We want to make sure they are healthy enough to be put into their enclosure," she said.Read the excerpt from Winter Driving.As he came around a bend in the road, he could feel his tires slip and slide on the ice. But the ice wasn't his only problem. His eyes grew wide when he saw a small hill straight ahead. He scrunched his eyebrows as he concentrated on staying on the road. He worried for a minute since he was driving slowly and the ice on the road might prevent him from making it up the hill.He drove slowly until he got to the base of the hill. He started making his way up, but it wasn't long before his tires started to spin on the ice. He continued, slow and steady, squeezing the steering wheel so tightly that his knuckles were turning white.Which best describes the mood shown in both excerpts?AngerFearHappinessRelief Determine the amplitude or period as requested. Amplitude of y=3 cos 1 2 If beaver family one can cut down and 20" tree in 15 minutes and family two can cut down a tree 3 times the size in twice as long how long will it take the second beaver family to cut down a 20" tree