Stoichiochemistry

Question 1

What is a mole? and how is it related to avogardo’s number

Answer 1

A mole of something is refered to 6.022*10^23 times of something, which is known as avogardo’s number

Question 2

How much does a mole of an element weigh?

Answer 2

A mole of an element will have the mass of it’s atomic mass in grams
eg. a mole of lithium will be 6.94g

Question 3

how many moles of glucose are in a sample of 1.5kg, given that the molar mass of glucose is 180.156?

Answer 3

given that 1.5kg divided by the moles of glucose is equal to 180.156g, there are 1500/180.156 moles in a 1.5kg sample

Question 4

If I have 50g of NaCl, and the molar mass of salt is 58.44g/mol, how many moles of salt do I have?

Answer 4

50/58.44
Think about it in reverse, if I have the mole, I would multiply g/mol to get the mass

Question 5

What are electrolytes?

Answer 5

substances that disassociate in a solvent into ions, which allows the solution to conduct electricity

Question 6

What is a solvent?

Answer 6

a solvent is a substance which solute is dissolved into, solvents are most commonly water

Question 7

What is a solute?

Answer 7

a substance which is dissolved into a solvent

Question 8

What is a solution?

Answer 8

A mixture of two or more substances