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Which has more atoms 1.1 g of hydrogen atoms or 14.7g of chromium atoms?
Wiki User
∙ 12y ago
For this you need the Atomic Mass of Cr. Take the number of moles and multiply it by the Atomic Mass. Divide by one mole for units to cancel.
11.9 moles Cr × (52.0 grams) =618.8 grams Cr
Demond Stroman
Wiki User
∙ 14y agoFor this you need the atomic mass of Cr. Take the number of moles and multiply it by the atomic mass. Divide by one mole for units to cancel.
11.9 moles Cr × (52.0 grams) =618.8 grams Cr
Wiki User
∙ 14y agoAssuming the Cr is existing purely as Cr, and is not bonded to another Cr atom or any other compound:
First we have to calculate the number of moles of Cr. This is the mass divided by the molecular weight, so 14.9 / 51.996. This is approx. equal to 0.287.
We then need to multiply this by Avogadro's number, which is the number of atoms in one mole. So we have 0.287 x ( 6.022 × 1023 ), which is equal to 1.73 x 1023 atoms.
Wiki User
∙ 12y agoLet us use comparative stoichiometry to find out. ( I am betting on the hydrogen out of experience )
1.1 grams hydrogen (1 mole H/1.008 grams)(6.022 X 1023/1 mole H)
= 6.6 X 1023 atoms of hydrogen
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6.6 X 1023/1.7 X 1023
= 3.8 times more hydrogen atoms than chromium atoms
Wiki User
∙ 10y agoAtomic mass of chromium, Cr = 52.0
Amount of Cr = 11.9/52.0 = 0.229mol
There are 0.229 moles of chromium in a 11.9g pure chromium sample.
Wiki User
∙ 10y ago1.10 g of hydrogen atoms has more atoms.
Wiki User
∙ 7y agoApprox 0.2635 moles.
Makayla Randall
0.229
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