given a bottle containing 9M- H2SO4 calculate the number of

a) Grammes of the acud in 1 dm3
b) moles of the acid in 50 cm3
c) if 20cm3 of the acid were to be diluted to 1M, how many milliters of distilled water would be needed?

2 answers

The mol wt of H2SO4 is 98 g/mole, so
(a) 9 moles, so ...
(b) 50mL * 1L/1000mL * 9moles/L = ___ moles
(c) 1/9 the concentration, so 9 times the volume, or 180cm^3.
So, you need to add 180-20 = ____ cm^3
Good