Concentration Units
Electrolytes
Concentration conversions
100
This is the unit for the moles of solute per liters of solution.
What is molarity?
100

CH3CH3NH2 is a ..?

weak electrolyte, weak base


100

This would be the mass percent of toluene in a solution made by mixing 40.0 g of toluene in 75.0 g of benzene.

34.8%

200

this is the equation for weight percent.

What is (mass of solute)/(mass of solution) x 100?

200

What is the conjugate base produced by H2SO4 in water?

HSO4-

200

This is the mass percent of sucrose in solution obtained by mixing 225 g of an aqueous solution that is 6.25% sucrose by mass with 135 g of an aqueous solution that is 8.20% sucrose by mass.

What is 6.98%?

300
The molality of a solution is defined as this.
What is (moles of solute)/(kilograms of solvent)?
300
What ions are produced if CH3CH2OH is put into water?

None, no reaction. 

300

What is the volume of water mL (density = 0.998 g/mL) required to dissolve 25.0 g urea (CO(NH2)2) in order to produce a 1.62 m solution

What is 257 mL?

400
You should multiply the weight percent of a solution by this exponent value to get the ppm of a solution.
What is (10^6)?
400
Ammonium acetate is a 

strong electrolyte 

400

What is the mol fraction of 56 g of sodium nitrate (84.9947 g/mol) in 230 mL of water (density water 1.00 g/mL)

0.049

500

If I prepare a 0.50 M solution on a hot summer day and take my solution into my chilled room, how will my M change?

It will increase. Think about the molarity eq. Dividing by V so the bigger the denom, smaller the M. 

500

What ions are produced if CH3CH2CH2COOH is put in water?

CH3CH2CH2COO- and H30+ bc weak electrolyte and weak acid


500
What is the molality of a 3.00 M solution of NaCl? The density of the solution is 1.12 g/mL. The solute is NaCl, solvent is water. 

3.17 molal

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