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Question 1
Calculate the Molarity of the below solutions
a.100 g NaCl dissolved in 1500 cm3 solution
b..2 Moles of AgNO3 in 2 L of solution
c.16 gm of CH3OH in 400 cm3 of solution
Molar Mass of NaCL = 58.5 g/Moles
Molar Mass of CH3 OH = 32 g/Moles
Answer
a.14 M
b..1 M
c. 25 M
Question 2
Find the volume of the 2.5 M sugar solution which contains .2 moles of sugar?
Answer
.08 L
Question 3
How much solute A is required to prepare id 400 ml of M/4 solution? Given Molar Mass of A = 132.1 g/M
Answer
13.21 g
Question 4
An aqueous solution of the substance A contain 28% of A by weight. The density of the solution is 1.2 g/mL. Find the molarity of the solution
Given the Molar Mass of the substance A = 36.5 g/Moles
Answer
9.2 M
Question 5.
A solution is prepared by mixing 2L of 4 M HCL solution and 3L of 1.5 M HCL solution. Find the Molarity of the final solution?
Answer
2.5 M
Question 6
A solution of 3 L and 1 M NaOH is prepared by mixing solutions of 2.50 M and .400 M NaOH respectively. Find the volume of the solution added
Answer
.857 L of 2.5 M
2.14 L of .4 M
Question 7
We have chemical equation given as
Zn + H2 SO4 -> Zn SO4 + H2
Calculate the volume of 2 M H2 SO4 required to react with 10g of Zinc
Molar Mass of Zn= 65.4 g/Moles
Answer
76.5 mL
Question 8
How much water should be added to 5L of 6.0 M HCL to make a solution of 2.0M HCL?
Answer
10 L