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
galina1969 [7]
3 years ago
10

A 30.0 mL sample of 2.3 M Cu(OH)2 sample was titrated to with 48.5 mL of HNO3 to find

Chemistry
1 answer:
navik [9.2K]3 years ago
8 0

Answer:

2.8 M HNO3

Explanation:

                 Cu(OH)2 + 2HNO3 ---> Cu(NO3)2 + 2H2O

                 1 mol           2 mol

The number of moles Cu(OH)2 in the sample:

2.3 mol/L*0.0300L = 0.069 mol

The number of moles HNO3  in the solution of HNO3 that was used for titration

x mol/L*0.0485L = 0.0485x mol

From equation we can see that number of moles HNO3 = 2 times number of moles Cu(OH)2.

So, we can write

0.0485x = 2*0.069

x = 2*0.069/0.0485 = 2.8 M HNO3

You might be interested in
Select the reagents you would use to synthesize the compounds below from benzene. Use the minimum number of steps. No more than
jekas [21]

Answer:

Explanation:

Using the necessary reagents to faciliate the synthesis of the organic compounds as shown in the attached file.

8 0
3 years ago
What are sister chromatids
Pavel [41]
Sister chromatids are two identical copies of a single chromosome that are connected by a centromere. They occur as a result of a chromosome that  duplicated during the S phase of the cell cycle.
4 0
3 years ago
Upper n subscript 2 (g) plus 3 upper H subscript 2 (g) double-headed arrow 2 upper N upper H subscript 3 (g). At equilibrium, th
artcher [175]

Answer:

The <u>equilibrium constant</u> is:

              k_c=0.0030M^{-2}

Explanation:

The correct equation is:

  •   N₂(g)    +    3H₂(g)    ⇄    2NH₃(g)

Thus, with the equilibrium concentrations you can calculate the equilibrium constant, Kc.

The equation for the equilibrium constant is:

         k_c=\dfrac{[NH_3]^2}{[N_2]\cdot [H_2]^3}

Substituting:

        k_c=\dfrac{(0.105M)^2}{(1.1M)\cdot (1.50M)^3}

         k_c=0.0030M^{-2}

6 0
3 years ago
What is the density of a liquid if the volume is 25 mL and the mass is 20.0 g?
LenKa [72]

Answers:  

                   Density = 0.8 g/mol.        

Given data:

                   v = 25 ml

                    m = 20 g

                    δ = ?

Solution:

               Formula for calculating density is given as,

                Density = Mass / Volume    

                 putting values  

                 Density = 20.0 g / 25 ml

                  Density = 0.8 g/mol.

3 0
3 years ago
Which statement can best be concluded from the ideal gas law?
schepotkina [342]
The temperature, pressure and volume of a gas are all related
5 0
2 years ago
Read 2 more answers
Other questions:
  • PL ZHELP plzZZZZZZZZZZZZZZZZZZZ
    9·2 answers
  • What is/are converted into carbon dioxide, water, and energy in aerobic respiration?A.oxygen only B.glucose only C.oxygen and gl
    9·2 answers
  • If 3.0 liters of oxygen gas react with excess carbon monoxide at STP, how many liters of carbon dioxide can be produced under th
    7·1 answer
  • Chemical weathering change the ___ of rock​
    8·1 answer
  • If the lead concentration in water is 1 ppm, then we should be able to recover 1 mg of lead from _____ L of water.
    15·1 answer
  • Why do some metals lose their shine over time but not gold ?
    9·2 answers
  • Convert 4.500000000 to scientific notation
    15·1 answer
  • 14. Carbon-14 emits beta radiation and decays with a half-life (t) of 5730 years. Assume
    14·1 answer
  • Please help sue at 11:59 and I need a good grade
    7·2 answers
  • Which properties are affected by temperature?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!