Calculations

Question 1

how do you calculate concentration

Answer 1

concentration = mass of solute/volume of solution

Question 2

how do you calculate number of moles of an element

Answer 2

number of moles = mass in grams/relative atomic mass

Question 3

how do you calculate number of moles of a compound

Answer 3

number of moles = mass in grams/relative formula mass

Question 4

how do you calculate the mass of a substance

Answer 4

mass in grams = relative atomic mass or relative formula mass * number of moles

Question 5

how do you calculate the concentration of a solute in a solution

Answer 5

concentration = moles of solute/volume of solution

Question 6

how do you calculate the number of moles of a gas

Answer 6

number of moles = volume/molar volume

Question 7

how do you calculate the volume of a gas

Answer 7

volume = number of moles * molar volume