Question

A.) A solution of H2SO4(aq) with a molal concentration of 3.58 m has a density of 1.200 g/mL. What is the molar concentration of this solution?

B.) What is the mole fraction of solute in a 3.79 m aqueous solution?

C.) An aqueous sodium acetate, NaC2H3O2, solution is made by dissolving 0.155 moles of NaC2H3O2 in 0.650 kg of water. Calculate the molality of the solution.

Answer #1

A solution of H2SO4(aq) with a molal concentration of 6.25 m has
a density of 1.300 g/mL. What is the molar concentration of this
solution?

A solution of H2SO4(aq) with a molal concentration of 6.80 m has
a density of 1.318 g/mL. What is the molar concentration of this
solution?

The density of a 1.22 M aqueous sucrose soluton
(C12H22O11) is 1.25 g/mL.
Calculate the molal concentration, mole fraction (sucrose) and the
mass percent (sucrose) of the solution. What volume (mL) of the
solution would contain 100 g of sucrose?

Calculate the Molality of 3.75 M H2SO4(aq), sulfuric acid
solution which has a density of 1.230 g/ml

Question 2
An aqueous solution of sodium carbonate,
Na2CO3 (MM = 105.99 g/mol) has a
density of 1.43 g/mL and a molality of 14.2 m (or mol/kg).
Calculate (i) the molarity of the solution, and (ii) the mole
fraction of Na2CO3.

What is the molal concentration of sodium in a 20.5 % (m/m) aqueous
solution of sodium phosphate?

An IV bag is labeled as 0.800% w/w sodium iodide in water
solution with a density of 1.014g/mL. What is the concentration of
sodium iodide in the solution expressed in molarity, molality, and
mole fraction?
Molarity = ?
Molality = ?
Mole Fraction = ?

The concentration of lead nitrate
(Pb(NO3)2) in a 0.826 M solution is ________
molal. The density of the solution is 1.202 g/mL.

1. The density at 20 ∘C of a 0.258 m solution of glucose in
water is 1.0173 g/mL, and the molar mass of glucose is 180.2 g/mol.
What is the molarity of the solution?
2. Household bleach is a 3.0 mass % aqueous solution of sodium
hypochlorite, NaOCl.
3.
A. What is the molality of the bleach? (Express your answer
using two significant figures.)
B. What is the mole fraction of NaOCl in the bleach? (Express
your answer using two...

What is the concentration in mole fraction of solute of a 1.25M
aqueous solution of potassium nitrate, KNO3? The density of the
solution is 1.19 g/mL.

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