How many moles of HCl are required to completely neutralize 0.30 moles of Ca (OH) 2?

0.30 moles

0.60 moles

0.15 moles

1.0 moles

0.60 you need 2moles HCl for 1mole Ca (OH) 2 so 0.60

Each mole of Ca (OH) ₂ will produce 2 moles of OH - ions

Each mole of OH - ions will require one mole of H + ions

Thus,

moles of OH - ions = moles of H + ions = 2 x 0.3

moles of H + ions required = 0.6

Each mole of HCl will produce one mole of H + ions

Moles of HCl = moles of H + ions

Moles of HCl = 0.6