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josediaz1124
17.07.2019 •
Chemistry
If monosaccharide has 11 oxygen atoms, how many hydrogen atoms does it contain
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Ответ:
The general chemical formula of a monosaccharide can be written as:
(CH2O)x
where x is the number of carbon or oxygen atoms
We can actually see that each carbon or oxygen atom requires 2 hydrogen atoms, therefore for a compound with 11 oxygen atoms, there would be:
22 Hydrogen atoms
Ответ:
Actual yield for the reaction is 38.5 g of NaCl
Explanation:
The balanced equation is this:
2 Na(s) + Cl₂ (g) → 2NaCl (s)
Ratio is 2:2. Let's determine the moles of sodium metal that has reacted.
17.25 g . 1 mol /23 gl = 0.75 moles
0.75 moles of Na were used to produced 0.75 moles of NaCl, according to the equation.
Let's determine the mass of NaCl, that were produced.
0.75 mol . 58.45 g / 1 mol = 43.8 g
43.8 will be the theoretical yield (100%). Let's determine the 88%.
(Yield reaction / Theoretical yield) . 100 = 88
Yield reaction / 43.8 g = 88 / 100
Yield reaction = 0.88 . 43.8 g → 38.5 g