Asked by Esther
Calculate the mass of solid which will be precipitated when 35g of carbon(iv)oxide are passed through a solution of calcium hydroxide
Answers
Answered by
DrBob222
Ca(OH)2 + CO2 ==> CaCO3 + H2O
mols CO2 = grams/molar mass = ?
ASSUMING you have enough Ca(OH)2 to use all of the CO2, then
mols Ca(OH)2 = mols CO2 (look and see in the balanced equation that 1 mole Ca(OH)2 requires 1 mol CO2 and ppts 1 mol CaCO3.
Then convert mols CaCO3 to grams.
grams = mols x molar mass = ?
Post your work if you get stuck.
mols CO2 = grams/molar mass = ?
ASSUMING you have enough Ca(OH)2 to use all of the CO2, then
mols Ca(OH)2 = mols CO2 (look and see in the balanced equation that 1 mole Ca(OH)2 requires 1 mol CO2 and ppts 1 mol CaCO3.
Then convert mols CaCO3 to grams.
grams = mols x molar mass = ?
Post your work if you get stuck.
Answered by
emmanuel
Calculate the grammes of oxygen which would be evolve on heating 5g of potassium trioxochlorate (v)
Answered by
promise
kindly how the workings
Answered by
promise
I can't understand anything,kindly show the workings
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