1.3/S1.4.5 Distinguish b/w solute, solvent, solution & conc. ppm

What is the definition of concentration?

• The amount of solute in a solution

• The amount of solvent in a solution

• The amount of solution in a solute

• The amount of solution in a solvent

Which unit is commonly used to measure volume in chemistry?

• Liters

• Grams

• Moles

• Decimeters cubed

What is the equation for concentration in terms of moles and volume?

• Moles of solute / Volume of solution

• Moles of solvent / Volume of solution

• Moles of solute / Volume of solvent

• Moles of solvent / Volume of solute

What is the term for concentration measured in moles per decimeter cubed?

• Molarity

• Molar mass

• Molecular mass

• Molar concentration

What do square brackets represent when used in concentration measurements?

• Concentration of

• Volume of

• Mass of

• Moles of

What is the purpose of using parts per million?

• To measure heavy-metal pollution in water

• To measure concentrated chemicals in blood

• To measure low concentrations of substances

• To measure the volume of a solution

Which unit can be used to represent parts per million?

• Milligram per kilogram

• Milligram per decimeter cubed

• Gram per liter

• Gram per centimeter cubed

If 2 grams of a chemical is dissolved in 10 kilograms of water, what is the resulting concentration in parts per million?

• 100 parts per million

• 200 parts per million

• 500 parts per million

• 1000 parts per million