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Nadusha1986 [10]
3 years ago
10

A 40 kg dog is sitting on top of a hillside and has a potential energy of 1,568 J. What is the height of the hillside? (Formula:

Chemistry
1 answer:
galina1969 [7]3 years ago
3 0
O 39.2
Or in other words
C
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Answer:  60.7 g of PH_3 will be formed.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given volume}}{\text{Molar volume}}    

\text{Moles of} H_2=\frac{60L}{22.4L}=2.68moles

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P_4(s)+6H_2(g)\rightarrow 4PH_3(g)

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6 moles of H_2 produce = 4 moles of PH_3

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Mass of PH_3=moles\times {\text {Molar mass}}=1.79moles\times 33.9g/mol=60.7g

Thus 60.7 g of PH_3 will be formed by reactiong 60 L of hydrogen gas with an excess of P_4

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