Given the following reaction Ca(OH)2+H2SO4→CaSO4+2H2O
If you start with 14.82 g of Ca(OH)2 and 16.35 g of H2SO4,
a) determine the limiting reagent
b) determine the number of moles of H2O produced
c) determine the number of grams of CaSO4 produced
d) determine the number of grams of excess reagent left

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

10 years is the answer