1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solmaris [256]
3 years ago
7

A student needs to prepare 100. mL of 0.612 M Cu(NO3)2 solution. What mass, in grams, of copper(II) nitrate should the student u

se? Enter a numerical value with the correct number of significant figures in the answer box. Do not enter units, but know that the final units must be grams.
Chemistry
1 answer:
Temka [501]3 years ago
3 0

Answer: 11.5 grams

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution

Molarity=\frac{n\times 1000}{V_s}

where,

Morality = 0.612 M

n= moles of solute  

V_s = volume of solution in ml = 100 ml

Now put all the given values in the formula of molarity, we get

0.612=\frac{n\times 1000}{100ml}

n=0.0612moles

Mass={\text {moles of solute }}{\times {\text {molar mass}}=0.0612moles\times 187.56g/mol=11.5g

Therefore, the mass of copper (II)nitrate required is 11.5 grams

You might be interested in
Wendy made the following diagram shown to represent the solar eclipse.
Pavlova-9 [17]
The moon should be between the sun and Earth
7 0
3 years ago
Read 2 more answers
Question 3(Multiple Choice Worth 1 points)
MatroZZZ [7]

Answer:

Do research on a Particular topic

8 0
3 years ago
When two species A and B form an electron-pair bond and A does not provide its electrons for bonding, the bond present between A
vichka [17]

Answer:

Ionic

Explanation:

If A does not have electron to bond, it just receives one electron from B.

It can´t be covalent because A don´t have any electrons to bond with B.

5 0
3 years ago
Which statement best describes insoluble substances?
Maksim231197 [3]

Answer:

Water does not remain when an insoluble substance is added

7 0
3 years ago
Read 2 more answers
Fermeroben heres the messages COUGH
lord [1]

I completely understand your gripe. I also believe that you are the better option. It will only take time until she is yours, despite your parent's views. Keep it up

6 0
3 years ago
Other questions:
  • A weak base is added to water. Which information is required to find the strength of its conjugate acid?
    9·2 answers
  • In which process does a solid change directly into a vapor?
    9·1 answer
  • Which metal reacts quickly with cold water only when it is finely powdered?
    6·2 answers
  • I need some information about greenhouse effect, please. Could you help me?
    5·2 answers
  • A 25.0-mL sample of 0.100M Ba(OH)2(aq) is titrated with 0.125 M HCl(aq).
    6·1 answer
  • When mixing vinegar and baking soda a reaction occurs. What caused the bubbles in the reaction?
    11·2 answers
  • The drug labetalol has a dose of 300 mg and is administered in 300 mL of an intravenous infusion at a rate of 2 mg/min. Using an
    12·1 answer
  • 26. At high temperatures these elements conduct electricity but at lower temperatures they do not conduct electricity. This make
    11·2 answers
  • In a mixture of hydrogen and helium gases, the mole fraction of helium is 0.750. If the partial pressure of hydrogen in the mixt
    10·1 answer
  • If a sample of air in a school container was heated, would the percentage of oxygen in the air increase, decrease, or remain unc
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!