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SCORPION-xisa [38]
2 years ago
5

water is formed when 48g of oxygen combine with 6g of hydrogen. what mass of oxygen combines with 2g of hydrogen

Chemistry
1 answer:
Mariulka [41]2 years ago
6 0

Answer:

16g of oxygen reacts with 2 g of hydrogen to form 18g of Water

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At 2°C, the vapor pressure of pure water is 23.76 mmHg and that of a certain seawater sample is 23.09 mmHg. Assuming that seawat
wariber [46]

Answer:

0.808  M

Explanation:

Using Raoult's Law

\frac{P_s}{Pi}= x_i

where:

P_s = vapor pressure of sea water( solution) = 23.09 mmHg

P_i = vapor pressure of pure water (solute) = 23.76 mmHg

x_i = mole fraction of water

∴

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x_2 = 0.0282

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x_2 = \frac{n_2}{n_i+n_2}  ------ equation (2)

where; (n_2) = number of moles of sea water

(n_i) = number of moles of pure water

equating above equation 1 and 2; we have :

\frac{n_2}{n_i}= \frac{0.0282}{0.9178}

= 0.02901

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= \frac{0.02901}{18}*1000

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3 0
2 years ago
Read 2 more answers
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