Asked by lyne
calcium hydroxide reacts in a neutralization reaction with sulfuric acid in a 1:1 ratio to form water and calcium sulfate. if you have 23.5 grams of calcium hydroxide, how many milliliters of water can you form?
how do i use dimensional analysis to solve this?
how do i use dimensional analysis to solve this?
Answers
Answered by
drwls
Ca(OH)2 + H2SO4 -> 2 H2O + CaSO4
The molar mass of Ca(OH)2 is 40 + 2*17 = 74 g/mole. So you consume 3.15 moles of Ca(OH)2 and form twice as many moles of H2O. Use the ideal gas law to convert that to VAPOR volume.
I don't see how dimensional analysis helps with this, except to keep track of dimensions.
The molar mass of Ca(OH)2 is 40 + 2*17 = 74 g/mole. So you consume 3.15 moles of Ca(OH)2 and form twice as many moles of H2O. Use the ideal gas law to convert that to VAPOR volume.
I don't see how dimensional analysis helps with this, except to keep track of dimensions.
Answered by
DrBob222
You need to use dimensional analysis only when the two materials react in other than a 1:1 ratio.
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