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pickupchik [31]
3 years ago
13

How much ice at 0°C could be melted by the addition of 15 kJ of heat? (ΔHfus = 6.01 kJ/mol)

Chemistry
2 answers:
BARSIC [14]3 years ago
7 0

Answer:

d. 45 g

Explanation:

The amount of ice melted is:

\Delta n = \frac{15\,kJ}{6.01\,\frac{kJ}{mol} }

\Delta n = 2.496\,moles

\Delta m = \Delta n \cdot M_w

\Delta m = (2.496\,moles)\cdot \left(18\,\frac{g}{mol} \right)

\Delta m = 44.928\,g

anzhelika [568]3 years ago
5 0

Answer: d.45 g

Explanation:see attached photo

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FrozenT [24]

Answer:

n=4.1mol

Explanation:

Hello,

In this case, we can use the ideal gas equation:

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n=\frac{PV}{RT}=\frac{2.0atm*101L}{0.082\frac{atm*L}{mol*K}*600K}  \\\\n=4.1mol

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Use the data set to answer the question.
andrezito [222]

Answer:

It is both accurate and precise.

Explanation:

Precision and accuracy are two different terms used to describe data or measurements. Accuracy refers to how close a set of measurements/experimental values is to an accepted or correct value while Precision refers to how close a series of experimental values are to one another.

In the given set of data in the question below, the Correct Value is 59.2 while the experimental values are as follows;

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