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coldgirl [10]
3 years ago
9

How many moles of H2 are required to make 10 moles of water?​

Chemistry
1 answer:
vampirchik [111]3 years ago
3 0

Explanation:

10 moles h20 is required

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Answer is distillation.

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3 years ago
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How much heat is required, in calories, to raise the temperature of 57.8 g of silver from
Stella [2.4K]

Answer:

87.3 calories of heat is required.

Explanation:

Heat = mcΔT

m= mass, c = specific heat of silver, T = temperature

H= 57.8 g * 0.057 cal/g°C * ( 43.5 - 17 °C)

H = 57.8 * 0.057 * 26.5

H = 87.3069 cal.

The heat required to raise the temperature of 57.8 g of silver from 17 °C to 43.5 °C is 87.3 calories.

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3 years ago
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How many moles of magnesium are needed to react with 3.0 mol of o2?
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6 0
3 years ago
1.a)concentrated sulphuric acid reacts with ethanol to produce ethene
Murljashka [212]

Answer: a) Temperature of 170^0C

b) C_2H_5OH\stackrel{conc H_2SO_4, 170^0C}\rightarrow C_2H_4+H_2O

c) dehydrating agent

Explanation:

Ethanol is heated with an excess of concentrated sulfuric acid at a temperature of 170°C to produce ethene.

The balanced chemical reaction is:

C_2H_5OH\stackrel{conc H_2SO_4, 170^0C}\rightarrow C_2H_4+H_2O

Here concentrated sulfuric acid removes a water molecule from ethanol and thus acts as a dehydrating agent.

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3 years ago
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