Question

how many moles of MgSiO3 are in 193g of the compound

Answer 1

Mol= mass/ molar mass

mass= 193g

The molar mass is on the periodic table.

Answer 2

Wait. Do you know how to calculate the molar mass of a compound?

Answer 3

I do not

Answer 4

To calculate the molar mass , you have to add up the mass of each atom.

Example : Molar mass of CO2= 12,01g/mol + 15.99(2)g/mol= 48...g/mol

Answer 5

Im still having trouble. I added all the mass from the periodic table then divided by 193 g

Answer 6

193 is divided by the total mass you get from adding all the molecular masses.

Answer 7

got it! thank you both

Answer 8

No problem!