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ivann1987 [24]
3 years ago
9

What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen?

Chemistry
1 answer:
astraxan [27]3 years ago
8 0
The formula for water is H2O so there would have to be two Hyrdogens and one oxygen. Therefore it would be 4g of Hydrogen and 16g of Oxygen leaving you with 20g.
The answer is D.

Hope this helps :) ~
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What is the coefficient for this formula? 9 NaCl2 A. 11 B. 9 C. 2 D. 1
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Answer:

B. 9

Explanation:

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Coefficient is the number before the compound. The compound here is made up of sodium and chlorine.

Therefore, we have 9 as the coefficient and it is 9 moles of NaCl.

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Note, NaCl is an ionic compound.

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A 2.5 mol sample of phosphorus pentachloride, PCl5 dissociates at 160C and 1.00atm to give 0.338 mol of phosphorus trichloride a
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Explanation:

Moles of phosphorus pentachloride present initially = 2.5 mol

Moles of phosphorus trichloride at equilibrium = 0.338 mol

PCl_5\rightleftharpoons PCl_3+Cl_2

Initially

2.5 mol      0    0

At equilibrium:

(2.5 - x) mol      x     x

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Mass of 2.162 moles of  phosphorus pentachloride at equilibrium:

= 2.162 mol × 208.5 g/mol = 450.777 g

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Mass of 0.338 moles of chloride gas at equilibrium:

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3 0
3 years ago
What will happen if you add more solute to a saturated solution?
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