Asked by Bhadmus

what is relative molecular mass of 10.5g of XHCO3, if the mass of C in it is 1.50g? calculate the mass of hydrogen
Answered by DrBob222
moles C = g/atomic mass = 1.50/12.01 = 0.125
so 10.5 g/0.125 = 84 = relative molar mass of XHCO3