if water is added to a 0.70 molar solution of CuSO4 what will change



A. molarity will increase



B. Molarity will decrease



C. the amount of CuSO4 will decrease



D. No change in molarity or amount of salute

Answers

Answer 1

Answer:

B. Molarity will decrease

Explanation:

Molarity is one of the measures of the molar concentration of a solution. It is calculated by dividing the number of moles of the solute by the volume of the solvent. This means that the higher the amount of solute in relation to the volume of solvent, the higher the molarity of that solution.

In essence, adding water to a solution dilutes it i.e it increases the solvent's volume in relation to the solute, causing the molarity to decrease. In a nutshell, diluting a solution (by adding water or more solvent) causes the molarity of such solution to decrease. For example, if water is added to a 0.70 molar solution of CuSO4, the molarity of the solution will DECREASE.


Related Questions

4) How many atoms are present in a sample of oxygen, O2 with 12.222 moles?

Answers

Answer:

two oxygen atoms

questions.
1) The degree of polarity of a bond is indicated by
A. Ionization energy difference
B. The shape of the molecule
C. Electronegativity difference
D. The partial charges of the molecule
2) When electrons are shared unequally, chemists characterize

Answers

Answer:

d

Explanation:

the partial charges of the molecule

I think it’s D hope that helped

Please help I’ll even give you brainliet

What is the molecular formula for a compound that is 34.31% sodium, 17.93% carbon, 47.76% oxygen and has a molar mass of 134.00g?

Answers

Answer: Na2C2O4 probably sodium oxalate

Explanation: assume you have 100 g substance.

Mass of Na is m(Na) = 34.31 g, m(C) = 17.93 g and m(O) = 47.76 g.

Calculate moles n(Na) = 34.31 g/22.99 g/mol= 1.49 mol.

For C n(C) = 1.49 mol and n(O) = 2.985. You divide all by 1.49 you

Get n(Na) : n(C) : n(O) = 1:1:2 M(NaCO2) = 67 g/mol.

Divide 134:67 = 2. You get formula Na2C2O4

Find the pH of a solution containing [H+]=0.00003

Answers

Answer:

Acid

Explanation:

because acid has a pH of6_1

PLEASE HELP!!!!!!!! I DO NOT UNDERSTAND

Answers

Answer:

A, B, C

Explanation:

Answer:A, b, c

Explanation

what is the difference b/w combustion and synthesis reaction ?explain with example​

Answers

Answer:

A synthesis reaction occurs when two or more reactants combine to form a single product in a double replacement reaction two compounds exchange elements. Combustion reaction occurs when a substance reacts quickly with oxygen combustion is commonly called burning. Example'- for synthesis reaction is iron+ oxygen water . Example:- for combustion reaction is often gaseous products.

may be this was ur answer I hope it might help u

Explain what you discovered from the Simulation about why food coloring spreads faster in warmer water.

Answers

Answer:

The food colouring mixes through the hot water faster than it mixes with the cold water, this is because in hot water the water molecule have more energy and are moving faster than the molecules of cold water .This makes it easier for the food colouring to get mixed quickly through the hot water.

Why are most anions basic in H2O? Give formulas of four anions that are not basic.

Answers

Answer:

The anions that can act as bases (conjugate bases of weak acids) have the capability to hydrolyse water and produce OH− ions. Cl−, Br−NO−3, SO2−4 are all conjugate bases of strong acids that don't have the capability to hydrolyse water and so they aren't basic.

Explanation:

connect them, dont guess please + 23 points

Answers

Answer:

Astronaut- highly trained individual for space travel

Payload Specialist- partnering scientist, journalist, or political guest.

Space Sickness- nausea, vomiting, and upset stomach.

Muscle Atrophy- the result of microgravity.

Johnson Space Center- training facility for U.S. astronauts.

Can you help me please

Answers

Answer:

Explanation:

h

What is the atomic number of the following element??

Answers

Answer:

91

Explanation:

91 it always says the number in the top left corner

Which is an energy source for a coyote?

Answers

Answer:

The coyotes are both a plant and meat eaters whose common food is 90% of their diet, is small animals. Rabbits, hares, birds, snakes, fish, crustaceans, and insects are all on the menu.

hopefully this is right :))

Answer:

sun

Explanation:

A solution of 1.8274g of a polypeptide in 274mL of a aqueous solution has an osmotic pressure at 31.40 degrees C of 2.012 mmHg. The approximate molecular weight of this polymer is _____ g/mol.

Answers

Answer: Hence, the approximate molecular weight of the poymer is 64106 g/mol

Explanation:

[tex]\pi=CRT[/tex]

where,

[tex]\pi[/tex] = osmotic pressure of the solution = 2.012 mm Hg =  0.0026 atm

i = Van't hoff factor = 1 (for non-electrolytes)

Mass of solute (polypeptide) = 1.8274 g  

Volume of solution = 274 mL

R = Gas constant = [tex]0.0821Latm/Kmol[/tex]

T = temperature of the solution = [tex]31.40^0C=(273+31.40)K=304.4K[/tex]

Putting values in above equation, we get:

[tex]0.0026=\frac{1.8274 g\times 1000}{M\times 274ml}\times 0.0821\times 304.4[/tex]

[tex]M=64106g/mol[/tex]

Hence, the approximate molecular weight of the poymer is 64106 g/mol

A block of concrete has a mass of 5100 g and a volume of 2500 cm3 . Calculate the density.

Answers

Answer:

2.04 g/cm3

Explanation:

Density = mass ÷ volume

= 5100 ÷ 2500

=2.04 g/cm3

What is an important effect of gravity?

Answers

Answer:

pulling objects with mass closer to each other

Explanation:

that is the only role of gravity

WDYT a mixture is? Please help

Answers

Answer:

A mixture is when two substances are physically combined and can be taken apart.

Explanation:

my words

Which of the following best describes the difference between metals and nonmetals?

a
metals tend to have low melting points and nonmetals have high melting points
b
nonmetals are more reactive than metals
c
metals are brittle and dull
d
metals have high melting points and are malleable, whereas, nonmetals have lower melting points and tend to be brittle.

Answers

Answer:

the answer is d.

Explanation:

because metals are refers to natural elements that are hard, shiney, opaque, and dense. nonmetals implies thise chemical substances that are soft, non-shiney, transparent and brittle.

In a lab, a scientist calculate he should produce 12.3 grams of product in his experiment. When he is finished collecting his product it weighs 11.0 grams. What is his percent yield?

Answers

Answer:

Option D.

Explanation:

Percentage yield = Actual yield / Theoretical yield * 100%

Actual yield = 11.0 grams

Theoretical yield = 12.3 grams

Percentage yield = 11.0 / 12.3  *  100

Percentage yield = 89.43%

which process helps guarantee that a species continues to involve over hundreds of years?

A. growth

B. nutrition

C. reproduction​

Answers

Answer:

C. reproduction​

Explanation:

A gas has a solubility of 1.46 g L at 8.00 atm of pressure. What is the pressure of a sample of the same gas that
contains 2.7 g/L of the dissolved gas?

Answers

Answer:

[tex]14.8\ \text{atm}[/tex]

Explanation:

[tex]C_1[/tex] = Initial concentration = 1.46 g/L

[tex]C_2[/tex] = Final concentration = 2.7 g/L

[tex]P_1[/tex] = Initial pressure = 8 atm

[tex]P_2[/tex] = Final pressure

From Henry's law we have the relation

[tex]\dfrac{C_2}{C_1}=\dfrac{P_2}{P_1}\\\Rightarrow P_2=\dfrac{C_2}{C_1}P_1\\\Rightarrow P_2=\dfrac{2.7}{1.46}\times 8\\\Rightarrow P_2=14.8\ \text{atm}[/tex]

The pressure of a sample of the same gas at the required concentration is [tex]14.8\ \text{atm}[/tex].

I NEED HELP PLS PLS PLS

Answers

pyrite because it doesn’t sink it floats

A mixture of Oxygen and Hydrogen occupies a pressure of 101.3kPa. The pressure of Hydrogen is 56kpa. Calculate the pressure of oxygen.

Answers

Answer:

45.3 KPa

Explanation:

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

Total pressure (Pₜ) = 101.3 KPa

Pressure of Hydrogen (Pₕ) = 56 KPa

Pressure of Oxygen (Pₒ) =?

The pressure of oxygen in the mixture can be obtained as follow:

Pₜ = Pₕ + Pₒ

101.3 = 56 + Pₒ

Collect like terms

101.3 – 56 = Pₒ

Pₒ = 45.3 KPa

Thus, the pressure of oxygen in the mixture is 45.3 KPa

Characteristics of a substance that describe its' ability to change into a different substance are called?

Answers

A characteristic of a pure substance that describes its ability to change into different substances. chemical change. A change that occurs when one or more substances change into entirely new substances with different properties. physical property.

Question number 12 I need help

Answers

Answer: Its B.

Explanation:

i cant quite explain

Which statement best describes the polarity of the molecule Sil4?

Answers

Answer:

I dont a picture

Explanation:

but the answer is 24

From point A to point B, the car will . From point B to point C, the car will . Assuming the washer on the car is not blocked by the book, once the car hits the book, the washer will still have . This experimental design will examine Newton’s law.

Answers

Answer:

Accelerate, Have Constant velocity, Velocity, and First

Explanation:

Got it right on edge. have a wonderful day!!!

From point A to point B, the car will . From point B to point C, the car will assuming the washer on the car is not blocked . It will examine Newton’s law will be "Accelerate, Have Constant velocity, Velocity, and First."

What is Newton’s law ?

The link between an object's motion with even the forces acting on it is outlined by Newton's laws of motion, which were three fundamental principles of classical mechanics.

What is  velocity?

The displacement of the item in one unit of time would be the definition of velocity.

Therefore, from point A to point B, the car will . From point B to point C, the car will assuming the washer on the car is not blocked . It will examine Newton’s law will be "Accelerate, Have Constant velocity, Velocity, and First."

To know more Newton’s law and Velocity

https://brainly.com/question/27573481

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Determine the correct set-up below to determine what mass, in grams, of N2 is needed to completely react with 105 g F2 ?

Answers

Answer:

C: 1 mol F2/38 g F2

Explanation:

The reaction equation is;

N2 + 3F2 = 2NF3

Now, to know how many grams, of N2 is needed to completely react with 105 g F2 and since the molar mass of N2 is 28.02 g/mol, Molar mass of F2 is 38 g/mol, number of moles attached to N2 and F2 in the reaction are 1 and 3 moles respectively, then we will have;

105 g F2 × 1 mol F2/38 g F2 × 1 mol N2/3 mol F2 × 28.02 g N2/1 mol N2

Option C is Thus correct

The Olympian swam 200 meters in 20 seconds.
1) velocity
2) acceleration
3) speed

Answers

Answer: velocity

Explanation:

The answer is 3) Speed.
Velocity describes speed and direction.
Accelerate is an increase of rate and speed

Form of energy knows as light energy

Answers

Electro magnetic energy

A clownfish uses a sea anemone as a safe place to live. While living there, the clownfish lures in food for the anemone. This is an example of what type of relationship?

Answers

do you possibly have a picture by vhanec?
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