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tino4ka555 [31]
3 years ago
7

125 cm3 of a solution contains 0.25 moles of the solute. What is the concentration of the solution?

Chemistry
1 answer:
jarptica [38.1K]3 years ago
3 0

Answer:

Explanation:

125 cm3 -> 0.125 L

M = no. mole / volume (L)

M = 0.25 / 0.125 = 2 M

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An oxide of phosphorus contains 56.4% phosphorus and 43.6% oxygen. It's relative molecular mass is 220. Find both the empirical
sladkih [1.3K]
Moles of P = 56,4g/30,974g/mole = 1,82 moles P
moles of O = 43,6/15,999 = 2,73 moles of O

converting to the simplest ratio:
For P : 1,82/1,82 = 1
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1 P and 2 oxygens.
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hope this help
7 0
3 years ago
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50 POINTS!
Varvara68 [4.7K]
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3 years ago
In 1901, Thomas Edison invented the nickel-iron battery. The following reaction takes place in the battery. Fe(s) + 2 NiO(OH)(s)
lord [1]

Ans: Moles of Fe(OH)2 produced is 5.35 moles.


Given reaction:

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Therefore, number of moles of Fe(OH)2 produced is 5.35 moles.



4 0
4 years ago
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