On a small scale, calcium can be isolated through the retion of calcium chloride with sodium metal
CaCl2 + 2Na --> Ca + 2NaCl
Question:
how many moles of Ca are produced from 3.5 mol Na?
2007-12-03 10:06:58 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
This is a balanced chemical equation. Note that the coefficient of Ca is half the coefficient of Na. So if you react 3.5 mol of Na, the product will be 3.5 / 2 = 1.75 mol of Ca.
2007-12-05 07:05:49 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
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2016-05-17 03:50:53 · answer #2 · answered by ? 4 · 0⤊ 0⤋
as quickly as we are changing from grams to moles of a given chemical, we choose 2 issues: a) the mass of the pattern which would be switched over, and b) the molecular weight of the compound. in accordance to Wikipedia, the molecular weight of NaN3 is sixty 5.0099 g/mol. this skill that for each 6.022x10^23 atoms of NaN3 (or one million mol of NaN3), we've a mass of sixty 5.0099g. Now that all of us recognize the education we choose, permit's calculate the variety of moles. Dimensional diagnosis tells us that if we divide the mass (g) by using the molecular weight (g/mol), we will gain moles, as shown: [g]*one million/[g/mol] = [g]*[mol/g] = mol So now permit's divide. 70 g NaN3/sixty 5.0099g/mol NaN3 = one million.0.5 mol NaN3 wish this permits!
2016-10-10 04:22:55 · answer #3 · answered by ? 4 · 0⤊ 0⤋
the answer is 3500 I think, sorry but Im not even sure on this one
2007-12-03 10:23:18 · answer #4 · answered by tigrrgrl 2 · 0⤊ 1⤋