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
Harman [31]
2 years ago
15

Calculate the mass, in grams, of Ag2CrO4 that will precipitate when 50.0mL of 0.20M AgNO3 solution is mixed with 40.0mL of 0.10M

K2CrO4 solution. Assume that Ag2CrO4 is completely insoluble (its Ksp is ~ 0).
Chemistry
1 answer:
Darina [25.2K]2 years ago
7 0

Answer:

1.327 g Ag₂CrO₄

Explanation:

The reaction that takes place is:

  • 2AgNO₃(aq) + K₂CrO₄(aq)  → Ag₂CrO₄(s) + 2KNO₃(aq)

First we need to <em>identify the limiting reactant</em>:

We have:

  • 0.20 M * 50.0 mL = 10 mmol of AgNO₃
  • 0.10 M * 40.0 mL = 4 mmol of K₂CrO₄

If 4 mmol of K₂CrO₄ were to react completely, it would require (4*2) 8 mmol of AgNO₃. There's more than 8 mmol of AgNO₃ so AgNO₃ is the excess reactant. <em><u>That makes K₂CrO₄ the limiting reactant</u></em>.

Now we <u>calculate the mass of Ag₂CrO₄ formed</u>, using the <em>limiting reactant</em>:

  • 4 mmol K₂CrO₄ * \frac{1mmolAg_2CrO_4}{1mmolK_2CrO_4} *\frac{331.73mg}{1mmolAg_2CrO_4} = 1326.92 mg Ag₂CrO₄
  • 1326.92 mg / 1000 = 1.327 g Ag₂CrO₄
You might be interested in
The chemical mixture that composes our atmosphere is called ________.
Virty [35]
Answer: Air

Hope this helps

3 0
3 years ago
Which best explains how heat plays a role in the movement of materials within Earth's interior?
Tema [17]

Answer:

Hot material near Earth's surface is more dense and sinks, and when it cools, it becomes less dense and rises.

Explanation:

Convection is a process by which less dense material rises and more dense material sinks near Earth's surface. Water, air, rocks and other materials expands when temperature rises and they become less dense. When the water is heated it becomes vapors and carries away thermal energy from the water.

6 0
3 years ago
Read 2 more answers
How many grams of cupric sulfate pentahydrate are needed to prepare 50.00 mL of 0.0800M CuSO4× 5H2O?
shepuryov [24]

Explanation:

Molarity is defined as number of moles per liter of solution.

Mathematically,         molarity = \frac{no. of moles}{Volume (in L) of solution}

It is given that molarity is 0.0800 M and volume is 50.00 mL or 0.05 L.

           molarity = \frac{no. of moles}{Volume of solution in liter}

            0.0800 M = \frac{no. of moles}{0.05 L}

            no. of moles = 1.6 mol

Therefore, molar mass of cupric sulfate pentahydrate is 249.68 g/mol. So, calculate the mass as follows.

                No. of moles = \frac{mass in grams}{molar mass}

             mass in grams = no. of moles \times molar mass of CuSO_{4}.5H_{2}O

                                       = 1.6 mol \times 249.68 g/mol

                                       = 399.488 g

Thus, we can conclude that 399.488 g of cupric sulfate pentahydrate are needed to prepare 50.00 mL of 0.0800M CuSO4× 5H2O.

4 0
3 years ago
Plzz help i will give brillants and stars and thx.
dalvyx [7]
Hdhdjejdhebdehxhshwhdb d nonsense
3 0
3 years ago
Read 2 more answers
Positive ions are called _____, and negative ions are called _____.
Artemon [7]

Answer:

Option B.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A certain element consists of two stable isotopes. the first has a mass of 68.9 amu and a percent natural abundance of 60.4 %. t
    12·1 answer
  • What is the geometry name for Sb2? Is it polar or non-polar?
    8·1 answer
  • 1. What type of reaction is listed below? Prove that it is balanced by listing the number of elements on both side of the equati
    15·2 answers
  • Mr. Thorton, the science teacher, was explaining the difference between kinetic and potential energy. He compared the difference
    5·2 answers
  • Write the reaction from the word equation and then balence the equation
    13·1 answer
  • A 13-gram rubber stopper is attached to a 0.93-meter
    6·1 answer
  • How many grams are in 5.00 moles of sodium carbonate?
    6·1 answer
  • What does the presence of tiny crystals in a piece of igneous rock tell you about it?
    14·1 answer
  • 8. Which type of element requires the least amount of energy to remove an electron?​
    7·1 answer
  • A- south<br> B- north <br> C-west<br> D- east <br> Help ASAP no links or I’m reporting
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!