Chemical Concentration

What is the unit of chemical concentration?

• Meters per liter (m/L)

• Kilograms per liter (kg/L)

• Moles per liter (mol/L) or grams per liter (g/L)

• Pounds per liter (lb/L)

How do you convert units of chemical concentration?

• Add the molecular weight

• Multiply by the atomic number

• Use conversion factors or dimensional analysis

• Divide by the molar mass

What does ppm stand for in chemistry?

• percentage per mile

• pounds per meter

• particles per molecule

• parts per million

What does ppb stand for in chemistry?

• Parts Per Billion

• Pints per Bushel

• Pounds per Barrel

• Papers per Book

What is the full form of ppm?

• percentage per mile

• pounds per meter

• power per megabyte

• parts per million

What is the full form of ppb?

• pounds per barrel

• parts per billion

• percentage per bottle

• parts per billionth

Explain the concept of parts per million (ppm) in chemical concentration.

• One part of a substance in one hundred parts of a solution or gas

• One part of a substance in one million parts of a solution or gas

• One part of a substance in one thousand parts of a solution or gas

• One part of a substance in one billion parts of a solution or gas

Explain the concept of parts per billion (ppb) in chemical concentration.

• One part of the substance for every billion parts of the mixture

• One billion parts of the substance for every part of the mixture

• One part of the mixture for every billion parts of the substance

• One part of the substance for every trillion parts of the mixture

What are the common units of concentration used in chemistry?

• Velocity (m/s), Acceleration (m/s2), Force (N)

• Temperature (°C), Pressure (atm), Volume (m3)

• Molarity (M), Molality (m), Normality (N)

• Grams (g), Liters (L), Kilograms (kg)

How do you calculate the concentration of a solution in ppm and ppb?

• Add the mass of the solute to the total mass of the solution and divide by 1,000,000 for ppm, and by 1,000 for ppb.

• Multiply the mass of the solute by the total mass of the solution and divide by 1,000,000 for ppm, and by 1,000 for ppb.

• Divide the mass of the solute by the total mass of the solution and multiply by 1,000,000 for ppm, and by 1,000 for ppb.

• Subtract the mass of the solute from the total mass of the solution and divide by 1,000,000 for ppm, and by 1,000 for ppb.