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butalik [34]
3 years ago
7

When 2.000 g of solid NaOH (∆Hsoln = -445.1kJ/mol) dissolves in 10.00 L of water, how much heat is released?

Chemistry
1 answer:
icang [17]3 years ago
8 0
For the first question, the correct answer would be 44.51 kJ. It is calculated by multiplying the amount of the substance in moles by the heat of the solution. For the second question, the correct answer would be a catalyst causes <span>a lowering the activation energy barrier.</span>
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How many mL are 2.3 mol of CO2 at STP?
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Answer:

0.052mL

Explanation:

1mole of a gas occupy 22.4L.

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coverting this volume to mL, we simply divide by 1000 as shown below:

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How many moles of CO are produced when 1.2 moles C reacts? Equation: 5C(s)+2SO2(g)→CS2(l)+4CO(g)
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