SAS 5

What is the definition of Normality in analytical chemistry?

• The ratio of grams per Molecular weight

• The number of mole equivalents per liter of solution

• The mass of one equivalent of a substance

• Moles of solute per kilogram of solvent

What is the SI unit for the amount of a chemical substance?

• Mole

• Kilogram

• Liter

• Gram

What is the difference between mass and weight?

• Mass is the force of attraction between an object and its surroundings, weight is an invariant measure of the quantity of matter in an object

• Mass and weight are unrelated

• Mass is an invariant measure of the quantity of matter in an object, weight is the force of attraction between an object and its surroundings

• Mass and weight are the same

What is the formula for converting a solution expressed in Normality into Molarity?

• M=N/F

• N=FxM

• M=F/N

• N=F/M

What is the formula for determining the Molar Concentration/Molarity of a substance?

• M = g/(volume in ml) x (mEq Weight)

• M = n/L

• M = n x (mEq Weight)

• M = g/(Molecular weight)

What is the formula for determining the volume of the final solution needed to create 1 Normal of a substance?

• N=(volume in ml) x (Molecular weight)

• N=(g/(volume in ml)) x (mEq Weight)

• N=(volume in ml) x (mEq Weight)

• N=(g/(volume in ml)) x (Molecular weight)

What is the formula for determining the weight needed to create a certain concentration of a substance?

• N=(volume in ml) x (Molecular weight)

• N=(g/(volume in ml)) x (Molecular weight)

• N=(g/(volume in ml)) x (mEq Weight)

• N=(volume in ml) x (mEq Weight)

What is the formula for determining the Factor of a substance?

• Factor = MW/F

• Factor = N x F

• Factor = MW x F

• Factor = N/F

What is the formula for determining the Equivalent weight of a substance?

• Eq weight = MW/F

• Eq weight = N x F

• Eq weight = MW x F

• Eq weight = N/F

What is the formula for determining the Moles of a substance?

• n = g/(volume in ml) x (mEq Weight)

• n = g/(Molecular weight)

• n = g/(volume in ml)

• n = g x (mEq Weight)