Question
Asked Sep 29, 2019

what mass of Na2CrO4 is required to precipitate all of the silver ions from 55.0 mL of a 0.300 M solution of AgNO3?

check_circle

Expert Answer

Step 1

Given:

Molarity of AgNO3 = 0.300 M.

Volume of AgNO3 = 55.0 mL = 0.055L.

The balanced chemical reaction between AgNO3 and Na2CrO4 is given by:

2AgNO3Na2CrO4 > Ag2Cr04 + 2NaNO3
help_outline

Image Transcriptionclose

2AgNO3Na2CrO4 > Ag2Cr04 + 2NaNO3

fullscreen
Step 2

Calculation for number of moles of AgNO3:

number of moles
molarity
Volume(L)
molarity x Volume (L)
number of moles
number of moles = 0.300 mol/L x 0.055 L
number of moles = 0.0165 moles.
help_outline

Image Transcriptionclose

number of moles molarity Volume(L) molarity x Volume (L) number of moles number of moles = 0.300 mol/L x 0.055 L number of moles = 0.0165 moles.

fullscreen
Step 3

From the balanced equation is evident that 1 mole of Na2CrO4 ...

2 mole of AgNO3
1 mole of Na2 Cr04
0.0165 moles of AgNO3
x moles of Na2CrO4
1 mol Na2 CrO4 x 0.0165 mol AgNO3
х-
1 mol AgNO3
0.00825 mol Na2CrO4
x
help_outline

Image Transcriptionclose

2 mole of AgNO3 1 mole of Na2 Cr04 0.0165 moles of AgNO3 x moles of Na2CrO4 1 mol Na2 CrO4 x 0.0165 mol AgNO3 х- 1 mol AgNO3 0.00825 mol Na2CrO4 x

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Chemistry

Related Chemistry Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: Consider the following system at equilibrium where H° = -111 kJ, and Kc = 0.159, at 723 K.N2(g) + 3H...

A: Click to see the answer

question_answer

Q: Chemistry Question

A: The given compound has to be named.Concept introduction:Any organic molecule can be named by using c...

question_answer

Q: Consider the following system at equilibrium where Kc = 0.159 and H° = -111 kJ/mol at 723 K.N2 (g) +...

A: (1) According to Le Chatelier’s principle, when the temperature increases equilibrium will shift in ...

question_answer

Q: Give the formula and name for the ionic compound formed from the combination of the indicated metal ...

A: The electrostatic force of attraction between the oppsitely charged ions that holds them together is...

question_answer

Q: What is the difference between the atomic mass and the atomic weight?

A: Click to see the answer

question_answer

Q: How many molecules (not moles) of NH3 are produced from 2.21*10^-4g of H2?

A: Given:Mass of H = 2.21 X 10-4 g of H2We need to find the number of molecules (not moles) of NH3 are ...

question_answer

Q: A solution of H,SO, (aq) with a molal concentration of 1.66 m has a density of 1.104 g/mL. What is t...

A: The relation between molality, molarity and density is given as:

question_answer

Q: 2. Consider the reaction CO(g) CH3OH(g) 2H2(g) A reaction mixture in a 1.00L flask initially only co...

A: Initial concentration of CO and H2 and also the concentration of CH3OH at equilibrium can be determi...

question_answer

Q: ethanol has a density of 0.789 g/cm3. what volume must be poured into a graduated cylinder to give 1...

A: Volume = mass / density