Chemistry Homework Help

### Browse Homework Solutions

26 solutions

Calculate Molarity

#### Q. Sodium hydroxide is available commercially as a 50.0% by weight aqueous solution. The density of the solution is 1.53 g/mL. Calculate the molarity of this sodium hydroxide solution. A) 0.450 M B) 25.0 M C) 19.1 M D) 125. M

Solved • Jul 15, 2019

Calculate Molarity

#### Q. A solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0 mL of solution. If the density of the solution is 1.1094 g/mL, what is the molarity? A) 0.1775 M H2SO4 B) 0.1810 M H2SO4 C) 1.940 M H2SO4 D) 1.810 M H2SO4

Solved • Jul 15, 2019

Calculate Molarity

#### Q. If the density of a 14.47 m (molal) solution of ethanol C2H5OH in water is 0.935 g/mL what is the molarity of ethanol in this solution?

Solved • Jun 25, 2019

Calculate Molarity

#### Q. The molar absorptivity, of a particular compound is 5,674M^-1*cm^-1. The absorbance of a solution was found to be 0.75 and the path length of the corvette used was 10mm. What is the concentration of the solution in units of molarity?

Solved • Jun 18, 2019

Calculate Molarity

#### Q. A solution is made by diluting 5 mL of 2M (NH4)2SO4 solution with water to a final volume of 100ml. Calculate the NH4+ concentration in the diluted solution

Solved • Mar 19, 2019