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Vilka [71]
3 years ago
13

A 12.8 g piece of aluminum (which has a molar heat capacity of 24.03 j/°c·mol) is heated to 82.4°c and dropped into a calorimete

r containing water (specific heat capacity of water is 4.18 j/g°c) initially at 22.3°c. the final temperature of the water is 25.7°c. ignoring significant figures, calculate the mass of water in the calorimeter.

Chemistry
1 answer:
BARSIC [14]3 years ago
5 0
The mass of Water in Calorimeter is approximately 118 grams, here is the solution:

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mart [117]

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<h3>Further explanation</h3>

Given

Barium element

Required

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If we look at this configuration, then Barium will try to achieve stability by removing 2 electrons so that the electron configuration is the same as the noble gas Xenon (Xe)

Because it removes 2 electrons, Barium has the number of protons> the number of electrons so that the charge is positive and forms a cation

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3 years ago
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mixer [17]

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<h3>What is activation energy?</h3>

Activation energy in chemistry is the energy required to initiate a chemical reaction.

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Therefore, it can be said that energy required to break existing chemical bonds in reactants is called the activation energy.

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8 0
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