How do you determine the Ka of an unknown acid using a titration curve?

Answers

Answer 1
The titration curve of an unknown weak acid with a strong base will be measured using a pH meter. From the titration curve, the equivalence point and the pKa of the acid will be found. The melting point of the solid acid will be found using a Meltemp.

Related Questions

Which compounds represent the
product(s) in the equation?
C3H8 + 5O2 ==> 4H2O + 3CO2


1.C3H8
2.502
3.Only 4H20
4.Both 4H20 and 3C02

Answers

Answer:

Both

compounds in left hand side of the equation is called reactants.

compounds in right hand side of the equation is called products.

so ans is both water and carbon di oxide

Explanation:

_______ is determined by the energy of the disturbance
that causes the wave.

Answers

Answer:

wave amplitude is the answer

To begin, check that Reaction 1 and Forward are selected. In this reaction, hydrogen (H2) and oxygen (O2) react to form water (H2O). The reaction takes place inside a device called a calorimeter. Inside the calorimeter, a small chamber holds the reactants. The rest of the calorimeter is filled with water. Click Play (). What happens?

Answers

Answer:

The reaction occurs and all H2 and O2 unite to form H20

I need help no links please

Answers

Answer:

A. We still feel gravity because of inertia, which occurs all around us. Gravity is not felt as much because although it feels small, gravity is the attraction that keeps objects on Earth.

B. This is due to a field and a law, which states that opposites attract and like repel.

You are melting a chocolate and accidentally have the stove up to high. the chocolate starts to burn on the bottom of your pot. Physical or Chemical Change?

Answers

Answer:

it is a chemical change because it can't be change back to it normal position when it gets burnt

What is defined as the plants and animals and the physical surroundings, including the sun, air, soil, and water?

Answers

Answer:

Ecosystem

Explanation:

The answer is ecosystem because the ecosystem includes the community such as living things and the enviornment of nonliving things such as the sun!

Answer:

ecosystem I'm pretty sure

How many moles of ammonia, NH3, are in 51 grams of NH3?

Answers

Answer:

grams NH3 is equal to 0.058718113128665 mole.

Explanation:

Answer:

3 moles

Explanation:

Use the mole = mass/mr equation

so, mole = 51/17 = 3 moles

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someone help me plz

Q. A small amount of Ferrous sulphate is heated in hard glass tube.

a) Write the balanced chemical reaction involved.

b) Name the type of reaction taking place.​

Answers

Answer:

[tex]a)\ 2FeSO4 \xrightarrow{\text{Heat}} SO_3+SO_2+Fe_2O_3\\b)\ Decomposition\ Reaction[/tex]

Explanation:

Ferrous Sulphate[tex](FeSO4)[/tex] is generally found as Lime-Green Crystals. On heating, these crystals almost immediately turn white-yellow. They then, break down to produce an anhydrous mixture of Sulphur Trioxide [tex](SO_3)[/tex], Sulphur Dioxide [tex](SO_2)[/tex]  as well as Ferric Oxide [tex](Fe_2O_3)[/tex].

We can hence, frame a skeletal equation of this reaction and try to balance it.

Hence,

[tex]FeSO4 \xrightarrow{\text{Heat}} SO_3+SO_2+Fe_2O_3[/tex]

Now,

a)In order to balance it through the 'Hit &Trial Method', we'll follow a series of steps:

1. First, lets compare the number of  Fe (Iron) atoms on the RHS and LHS. We find that, the no. of Fe Atoms on the RHS is twice the number of Fe Atoms on the LHS. We hence, add a co-effecient 2 beside [tex]FeSO_4[/tex].

2. Now, Iron atoms, Sulphur Atoms and Oxygen atoms occur 2, 2, 8 respectively on both the sides:

Hence, As all the other elements as well as iron, balance, we've arrived upon our Balanced Equation :

[tex]2FeSO4 \xrightarrow{\text{Heat}} SO_3+SO_2+Fe_2O_3[/tex]

b) We know that, decomposition reactions are [generally] endothermic reactions in which Large Compounds decompose into smaller elements and compounds. Here, as Ferrous Sulphate decomposes into Sulphur Dioxide, Sulphur Trioxide and Ferric Oxide, the reaction that occurs here is Decomposition Reaction.

Heyy,
I hope that you're doing well today! :)

Can you help me please with my chemistry homework?
How are these two formulas called?

Thank youu​

Answers

These are structural formulas of constitutional isomers of hexene, an alkene.

Both are acyclic, six-carbon chains, and they differ only in the position of the double bond. As constitutional isomers, both structures have the same molecular formula.

The first structure is of hex-1-ene (or 1-hexene).

The second structure is of (3E)-hex-3-ene [or (3E)-3-hexene].

Both structures have the molecular formula C₆H₁₂.

I hope I answered your question. Please feel free to let me know otherwise.

Carbon dioxide and oxygen are both ___ found in the air.

Answers

Answer:

gases

Explanation:

Answer:

the Carbondioxed and oxygen are both a gass found in the air

PLEASE ANSWER QUICKLY

Which are characteristics of arthropods? Check all that apply.
radial symmetry
nervous system
asexual reproduction
segmented body
open circulatory system

Answers

Answer:  I say its Segmented body  and radial symmetry im not sure if it is right

Explanation:

Answer:

B. Nervous system

D. Segmented body

E. Open circulatory system

Explanation:

Hope this helps!

Have a nice dayy! :)

A sample of oxygen gas occupies a volume of 229.5 mL at 762.7 torr pressure. What volume in mL will it occupy at 704.5 torr pressure?

Answers

Answer:

248.4 mL

Explanation:

In order to answer this problem we can use Boyle's law, which states that at a constant composition:

P₁V₁ = P₂V₂

Where in this case:

P₁ = 762.7 torrV₁ = 229.5 mLP₂ = 704.5 torrV₂ = ?

We input the data:

762.7 torr * 229.5 mL = 704.5 torr * V₂

And solve for V₂:

V₂ = 248.4 mL

the process plants use to make sugar for food

A respiration
B eqidermis tissue
C photosynothedis
D chlorophyll​

Answers

C. Photosynthesis makes food on their own

Based on what you have learned about the units for measuring thermal energy, complete the following passage.



The unit often used in chemistry and physics to measure energy, such as for work or electrical current, is the
. We can also use this unit, as we did in this lab, for measuring
. This is a property that is quantified by the energy needed per
of material to raise the temperature by one
. The unit for this measure is therefore
.

Answers

Answer:

1.joule 2.specific heat 3.gram 4.degree Celsius 5.J/g°C

Explanation:

I did the lab

Thermal energy is represented in the units joules J. It is the energy needed to raise the temperature by one degree celsius.Per gram this energy is called as specific heat capacity with the unit J/°Cmol.

What is heat capacity?

Heat capacity of a substance is the heat energy required to raise the temperature of the substance by one degree celsius.

If the heat capacity is measure per one mole of a substance it is called specific heat capacity. It is an intensive property whereas heat capacity is an extensive property.

The given passage can be completed as follows:

The unit often used in chemistry and physics to measure energy, such as for work or electrical current, is Joule (J). We can also use this unit, as we did in this lab, for measuring  heat capacity.  

This is a property that is quantified by the energy needed per one gram of material to raise the temperature by one degree celsius.The unit for this measure is therefore J/°Cg.

To find more about heat capacity, refer the link below:

https://brainly.com/question/28921175

#SPJ2

HELP PLZ ILL GIVE BRAINLIEST

Answers

THE LINK THAT THAT PERSON GAVE YOU IS FAKE


What is the empirical formula of a compound with a percent composition of 22.5% Phosphorous and 77.5% Chlorine?

Answers

Answer:

[tex]\boxed {\boxed {\sf PCl_3}}[/tex]

Explanation:

We are given the percent composition: 22.5% phosphorus and 77.5% chlorine.

We can assume there are 100 grams of this compound. We choose 100 because we can simply use the percentages as the masses.

22.5 g P 77.5 g Cl

Next, convert these masses to moles, using the molar masses found on the Periodic Table.

P: 30.974 g/mol Cl: 35.45 g/mol

Use the molar masses as ratios and multiply by the number of grams. [tex]22.5 \ g \ P * \frac {1 \ mol \ P }{30.974 \ g \ P}= \frac {22.5 \ mol \ P }{ 30.974} = 0.7264157035 \ mol \ P[/tex]

[tex]77.5 \ g \ Cl * \frac {1 \ mol \ Cl }{35.45 \ g \ Cl}= \frac {77.5 \ mol \ Cl }{ 35.45} \ =2.186177715 \ mol \ Cl[/tex]

Divide both of the moles by the smallest number of moles to find the mole ratio.

[tex]\frac {0.7264157035} {0.7264157035} = 1[/tex]

[tex]\frac {2.186177715}{0.7264157035}=3.009540824 \approx 3[/tex]

The mole ratio is about 1 P: 3 Cl, so the empirical formula is written as: PCl₃

ASAP EASYYYY!!!!!!!!
List three household products that should go to a secure landfill site instead of regular sanitary landfill.

Answers

Answer:

A 0.60 mol sample of PCl 3 (g) and a 0.70 mol sample of Cl 2 (g) are placed in a previously evacuated 1.0 L container, and the reaction represented

Explanation:

Please answer grade 6th

Answers

Answer:

The last one

Explanation:

I have done this before

Answer:

Earth's plates moving & colliding against one another.

Which option correctly orders the elements by increasing reactivity?
Hint: Review your periodic table.


Na < Li < K
Na < Li < K, ,

K < Na < Li
K < Na < Li, ,

Li < Na < K
Li < Na < K, ,

Na < K < Li

Answers

Answer: Li < Na < K is the answer

Explanation:

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