Ammonia (NH3) dissolved in water is heated in a beaker. If initially there had been 60 grams dissolved in 100 grams of water, what would happen if the temperature reached 90℃ and why? A. The solution would become supersaturated and the ammonia would all remain dissolved . B. The solution would become saturated but the amount of ammonia dissolved would remain the same . C. about 50 more grams of ammonia would be able to dissolve as the solution has become unsaturated . D. about 50 grams of ammonia would come out of solution as the temperature caused the solubility to decrease .

Answers

Answer 1

Answer:

C. About 50 more grams ammonia would be able to dissolve as the solution has become unsaturated

Explanation:

From the question, we have;

The mass of ammonia dissolved in water = 60 grams

The mass of the water solvent which dissolves the ammonia = 100 g

The temperature to which the ammonia water solution is raised = 90°C

Therefore, given that the solubility of a solute in a solvent increases with temperature, when the temperature is raised, we have, that the solution will more unsaturated and will be able to dissolve more ammonia, therefore, option 'C' is the most correct option that corresponds with the relationship of temperature and solubility


Related Questions

Explain how to count the number of elements in a compound.

Answers

Answer:

Simply identify what elements are in a compound

Explanation:

For example in NaCl we have sodium (Na) and Chlorine (Cl)

In order to do this you would need to recognise the symbols for a certain element: O for oxygen; N for nitrogen; H for hydrogen etc.

i have a quiz yall help

How many moles are in a 18 L tank of nitrogen gas at STP?

Answers

Answer:

12

Explanation:

i feel like its 12 because moles are medium sized but are they adult moles or baby moles or growing moles

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 0.803moles of nitrogen gas  are there in  a 18 L tank of nitrogen gas at STP.

What is mole?

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

number of moles of any ideal gas =given volume ÷Volume occupied by one mole of a ideal gas at STP

Volume occupied by one mole of a ideal gas at STP=22.4L

given volume of nitrogen gas= 18 L

substituting all the given values in the above equation we get,

number of moles of nitrogen gas =18 L ÷22.4L

number of moles of nitrogen gas =0.803moles

Therefore, 0.803moles of nitrogen gas  are there in  a 18 L tank of nitrogen gas at STP.

To know more about mole, here:

https://brainly.com/question/15209553

#SPJ2

A concept map is shown.

Which of the following topics best completes the graphic organizer?

A. Physical properties of elements

B. Chemical properties of elements

C. Evidence of a physical change

D. Evidence of a chemical change

Answers

Answer:

C Evidence of Physical change

Explanation:

Because Solid forms is a physical change and so are all the other ones    

5) Which element has the lowest first ionization energy?*
Li
K
Na

Answers

Answer:

K

Explanation:

Ionisation energy is the energy required for electron loss and the higher the occupied energy levels=higher atomic radius=the lower the ionisation energy thus k=2.8.8.1

Na=2.8.1

Li=2.1

1. When _____
are added or removed from an atom, _____
is formed

Answers

Answer:

1.) protons or electrons 2.) ion

Explanation:

How do you explain the ability of nonmetals to attract electrons to themselves?

Answers

Answer:

When these chemical bonds form, atoms of some elements have a greater ability to attract the valence electrons involved in the bond than other elements. Electronegativity is a measure of the ability of an atom to attract the electrons when the atom is part of a compound. Electronegativity differs from electron affinity because electron affinity

HOPE IT HELPS

Explanation:

Answer:

it is electronegativity and it increases as you move up and to the right on the periodic table and nonmetals are situated to the top right of the periodic table

Explanation:

Use the Word Correctly in a Sentence

Ion

Answers

I am studying about Ions in my science class.

How many grams of Fe2O3 are needed to produce 51.9 g of CaO?

Answers

Answer:

98.8g (3 s.f.)

Explanation:

Use the mole = mass/mr equation to find the moles of CaO, then use the molar ratio to find the moles of Fe2O3, which is the same as CaO, (assuming the ratio is 1:1, as you haven't stated it clearly in the question). Then use the equation and input to find Mass, which is 98.8g to 3 s.f.

how are the messages of the endocrine system moved around the body?

Answers

Answer:

Endocrine glands make chemicals called hormones and pass them straight into the bloodstream. Hormones can be thought of as chemical messages. From the blood stream, the hormones communicate with the body by heading towards their target cell to bring about a particular change or effect to that cell.

Help!! < PHYSICAL SCIENCE>

Answers

The answer is B or the second answer

1.The water molecule is-

A. Slightly negative near the hydrogen atoms and slightly positive near the oxygen atom

B. Slightly positive in all areas of the molecule

C. Slightly negative near the oxygen atom and slightly positive near the hydrogen atoms

D. The same charge in all areas of the molecule

Answers

Answer:

C.

Explanation:

Slightly negative near the oxygen atom and slightly positive near the hydrogen atoms

is an example of a solution that contains a dissolved substance

Answers

Answer:

An aqueous solution is water that contains one or more dissolved substances. The dissolved substances in an aqueous solution may be solids, gases, or other liquids.

Chem. Assignment

I need help...with answers 1-6 thanks

Answers

Answer:

1. an educated guess

2. data

3. what changes in experiment

4. what stays the same in both groups

5. the group where nothing changes, normal

6. group with independent variable, what's being tested

Define pollination, fertilization and photosynthesis process​

Answers

Pollination is the transfer of pollen from a male part of a plant to a female part of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind.

Fertilization is the union between a male and a female nuclei inside the egg to form the zygote.

Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy. Here, we describe the general principles of photosynthesis and highlight how scientists are studying this natural process to help develop clean fuels and sources of renewable energy.

whats the salt produced when sulfuric acid reacts with iron?

Answers

Answer:

Dilute sulfuric acid reacts with metals higher than hydrogen in the reactivity series to form sulfate salts and hydrogen gas. Note the metal reactions are different with concentrated sulfuric acid. Iron is cleaned free from rust prior to coating with tin to form tinplate and with zinc to form galvanized iron.

0.53g of acetanilide was subjected to kjeldahl determination and the ammonia produced was collected in 50cm3 of 0.50M of h2so4.on dilution 250cm3, the acid was titrated against 25cm3 portion of 0.05M sodium carbonate solution. 13.60 of acid was required for each titration. What is percentage of nitrogen in acetanilide ​

Answers

Answer:

10.57% of N in acetanilide

Explanation:

All nitrogen in the sample is converted in NH₃ in the Kjeldahl determination. The NH₃ reacts with H₂SO₄ as follows:

2NH₃ + H₂SO₄ → 2NH₄⁺ + SO₄²⁻

The acid in excess in titrated with Na₂CO₃ as follows:

Na₂CO₃ + H₂SO₄ → Na₂SO₄ + H₂O + CO₂

To solve this question we must find the moles of sodium carbonate = Moles of H₂SO₄ in excess. The added moles - Moles in excess = Moles of sulfuric acid that reacts:

Moles Na₂CO₃ anf Moles H₂SO₄ in excess:

0.025L * (0.05mol / L) = 1.25x10⁻³ moles Na₂CO₃ / 0.01360L =

0.09191M * 0.250L = 0.0230 moles H₂SO₄ in excess.

Moles H₂SO₄ added:

0.050L * (0.50mol / L) = 0.0250 moles H₂SO₄ added

Moles that react:

0.0250 moles - 0.0230 moles = 0.0020 moles H₂SO₄

Moles of NH₃ = Moles N:

0.0020 moles H₂SO₄ * (2mol NH₃ / 1mol H₂SO₄) = 0.0040 moles NH₃ = Moles N

mass N and mass percent:

0.0040 moles N * (14g / mol) = 0.056gN / 0.53g * 100 =

10.57% of N in acetanilide

How many valence electrons are in each atom? a. potassium C. magnesium b. carbon d. oxygen ​

Answers

Just look it up you’ll get the answers faster

If the football indoors had a volume of 5.33 L at 21degrees celsuis, what is the volume of the football outside where the temp is 10C (temp must be in K) MUST SHOW WORK

Answers

Answer:

5.13 L

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 5.33 L

Initial temperature (T₁) = 21 °C

Final temperature (T₂) = 10 °C

Final volume (V₂) =?

Next, we shall convert celsius temperature to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

Initial temperature (T₁) = 21 °C

Initial temperature (T₁) = 21 °C + 273

Initial temperature (T₁) = 294 K

Final temperature (T₂) = 10 °C

Final temperature (T₂) = 10 °C + 273

Final temperature (T₂) = 283 K

Finally, we shall determine the final volume. This can be obtained as follow:

Initial volume (V₁) = 5.33 L

Initial temperature (T₁) = 294 K

Final temperature (T₂) = 283 K

Final volume (V₂) =?

V₁/T₁ = V₂/T₂

5.33 / 294 = V₂ / 283

Cross multiply

294 × V₂ = 5.33 × 283

294 × V₂ = 1508.39

Divide both side by 294

V₂ = 1508.39 / 294

V₂ = 5.13 L

Thus, the new volume of the football is 5.13 L

Consider the redox reaction below. Upper M g (s) plus Pper f e superscript 2 plus (a q) right arrow upper M g superscript 2 plus (a q) plus upper F e (s). Which equation is a half reaction that describes the reduction that is taking place?

Answers

Answer: [tex]Fe^{2+}(aq)+2e^-\rightarrow Fe(s)[/tex]

Explanation:

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

 Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

[tex]Mg(s)+Fe^{2+}(aq)\rightarrow Fe(s)+Mg^{2+}(aq)[/tex]

The oxidation half reaction is:

[tex]Mg(s)\rightarrow Mg^{2+}(aq)+2e^-[/tex]

The reduction half reaction is:

[tex]Fe^{2+}(aq)+2e^-\rightarrow Fe(s)[/tex]

Answer:

A

Explanation:

edge

Which statement describes the solar feature shooting off into space labeled C?
An envelope of plasma surrounding the sun
A stream of glowing gas that shoots out from the sun in an arch
A brief eruption of intense high-energy radiation from the sun's surface
A dark spot appearing from time to time on the sun's surface

Answers

Answer:

The correct answer is - An envelope of plasma surrounding the sun.

Explanation:

In the provided diagram the C labeled part of the sun is an envelope of plasma surrounding the sun which is called Solar Corona which makes the outermost layer of the atmosphere of the sun. Solar Corona is hotter in comparison to the surface of the sun itself.

Solar Corona is made up of the fourth state of matter known as plasma that has its magnetic field that determined its structural characteristics. Thus, the correct answer is an envelope of plasma surrounding the sun.

Answer:

person above is correct

Explanation:

I took the quiz and got it right.

C4H10+ 02 → CO2 +H2O
balance the equation

Answers

Answer:

C4H10 + 502 -> CO2 + 5H20

......

.......

please help there is a pic and marking brain list

Answers

Answer:

3

Explanation:

It’s all of the above

Substances that absorb energy in the form of heat are
A) Exothermic
B) Endothermic
C) Isothermic

Answers

Answer:

Substances that absorb energy in the form of heat are

b)endothermic.

hope it helps :)

Substances that absorb energy in the from of heat are Endothermic..

Name
12. A chemist places a piece of solid magnesium in an aqueous solution of copper (II)
sulfate and notices a reaction. Pieces of solid copper dropped out of the solution as a
precipitate and magnesium sulfate was formed.
a) Give a balanced formula equation (with state symbols) for this reaction (3 marks)

Answers

Answer:

Explanation: Mg(s) + CuSO4 (aq) -> Cu(s) + MgSO4 (aq)

Which of the following reactions had the greatest percent yield?
a.Theoretical yield 52.3 g; actual yield 50.7g
b.Theoretical yield 17.1 g; actual yield 15.7g
c.Theoretical yield 38.8 g; actual yield 36.2 g
d.Theoretical yield 24.6 g; actual yield 22.5 g

Answers

Answer:

Option A

Explanation:

As we know  

Percent yield is the ratio of actual yield/theoretical yield

a) Percent yield  - Theoretical yield 52.3 g; actual yield 50.7g = 0.97 = 97%

b) Percent Yield - Theoretical yield 17.1 g; actual yield 15.7g = 92%

c) Percent Yield - Theoretical yield 38.8 g; actual yield 36.2 g = 93%

d) Percent Yield - Theoretical yield 24.6 g; actual yield 22.5 g = 91%

Hence option A is correct

If the pressure on a gas at -73°C is doubled but its volume is held constant, what will its final temperature be in degrees Celsius?

Answers

Answer:

127°C

Explanation:

This excersise can be solved, with the Charles Gay Lussac law, where the pressure of the gas is modified according to absolute T°.

We convert our value to K → -73°C + 273 = 200 K

The moles are the same, and the volume is also the same:

P₁ / T₁ = P₂ / T₂

But the pressure is doubled so: P₁ / T₁ = 2P₁ / T₂

P₁ / 200K = 2P₁ / T₂

1 /2OOK = (2P₁ / T₂) / P₁

See how's P₁ term is cancelled.

200K⁻¹ = 2/ T₂

T₂ = 2 / 200K⁻¹  → 400K

We convert the T° to C → 400 K - 273 = 127°C

Which term refers to an electrochemical cell that uses a spontaneous redox reaction to produce an electric current?
electrolyte
voltaic cell
electrolytic cell
cathode

Answers

Voltaic cell because it is the right answer

1)Why do clouds usually form high in the air instead of near Earth's surface?

a) High in the atmosphere is less dense
b) High in the atmosphere contains less oxygen
c) High in the atmosphere is usually cooler
d) High in the atmosphere has less air pressure

Answers

The answer is letter A definitively .

how many moles of solute are present in a 2 L of a 25M potassium nitrate solution
a. 0.5 moles
b. 2 moles
c. 50 moles
d. 25 moles

I NEED THIS ANSWER ASAP, im taking the quiz right now and i need HELPPP

Answers

Answer:

50 moles

Explanation:

took the quiz

4. The volume of a gas is 2.5 L when the pressure is at standard pressure (101.325 kPa). What is the
volume of the gas if the pressure decreases to 85 kPa and the temperature of the gas if the pressure is constant?

Answers

Answer:

18.32L

Explanation:

sana makatulong

Other Questions
7.1.13 Question Help Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=992 and x = 570 who said 'yes." Use a 99% confidence level. B Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) In the data set below, what is the mean absolute deviation?8 9 6 1 8 6 4If the answer is a decimal, round it to the nearest tenth.(you will get brainlest ansd 11 points)mean absolute deviation (MAD): PLEASE HELPDetermine whether the lines y =- 1/7x-1 and y=-1/7x-5 are parallel, perpendicular or neither A ParallelC. Neither B. Perpendicular This chart describes the characteristics of one ancient American civilization. Which ancient American civilization is described in this chart? o Aztec o Inca O Maya O Olmec Select the correct answer.Which element is found in a play that differentiates it from novels?A stage directionsB. dialogueC.settingd .theme Please help with this math question' DOUBLE CHECKING HALP 30 POINTSWhich word signals an effect? A. if B. since C. because D. therefore x 3 6pls help me youre content and design should be influenced by the _______ of your usersa. ageb. goalsc. moodd. attitudei already know the answer 90%im just making sure please help me :)))))) No decorrer das semanas, a lua apresenta diferentes aspectos. A causa para essas mudanas na aparncia do satlite da terra : A) a sombra da terra refletida sobre a lua. B) o movimento de rotao da lua em torno do seu prprio eixo. C) os raios solares que incidem na superfcie da lua. D) a translao da lua ao redor da terra. HELP PLEASE ASAP !!!!!!!!!!!!!!!!!!! {will give brainiest}In quadrilateral ABCD, mA = 8x-65, mB = 6x-53, M C = x+ 121, and m D = 6x+21.a. Find mA, mB, M C , and m D .b. Classify quadrilateral ABCD as a kite, trapezoid, or isosceles trapezoid. Justifyyour answer.c. What is true of the side lengths? A company made 700000 profit last year. It says this was 12percent more than the year before. What was the profit made the year before What drove the colonies into the move for independence Can someone use amendment in a sentence ? I need help plissss.............. 4y-6 = 2y +8I need helppp Find the area of a circle with a radius 4 mm. Use the value 3.14 for , and do not round your answer. Be sure to include the correct unit in your answer. Find the area of the shape shown below.