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Basile [38]
3 years ago
14

Consider Example 12.10. Suppose the experiment is repeated with 0.032 mol of helium instead with everything else staying the sam

e, what is the amount of heat required now to achieve that process
Chemistry
1 answer:
Lemur [1.5K]3 years ago
5 0

Answer:

120 extracted from the gas

Explanation:

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To change an object from a liquid to a gas _________ must happen
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Evaporation!
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What is the symbol of the element that has the electron configuration 1s22s22p63s23p64s23d5?
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7 0
3 years ago
What is the volume of a 16.24 g sample of magnesium in cubic centimeters? Show a numerical setup and result for credit.
Virty [35]

Answer:

9.34 cm³

Explanation:

From the question given, we obtained the following data:

Mass of magnesium = 16.24 g

Volume of magnesium =.?

To obtain the volume of the magnesium sample, we simply apply the formula for calculating the density of samples. This is illustrated below:

Mass of magnesium = 16.24 g

Density of magnesium 1.738 g/cm³

Volume of magnesium =.?

Density = mass /volume

1.738 = 16.24/volume

Cross multiply

1.738 × volume = 16.24

Divide both side by 1.738

Volume of magnesium = 16.24/1.738

Volume of magnesium = 9.34 cm³

Therefore, the density of the magnesium sample is 9.34 cm³.

6 0
3 years ago
How many grams of magnesium are needed to completely react
Verizon [17]

97.22 grams of magnesium is needed.

<u>Explanation:</u>

The molar ratio of Mg to O2  to make MgO is 2:1

Here, we have 2 moles of O2, therefore we need 4 moles of Mg.

1 mol of Mg = 24.305 g

Therefore

4 moles of Mg = 4 \times 24.305 g

                        = 97.22 g

Hence we need 97.22grams of magnesium are needed to completely reactwith 2.00 mol of O2 in the synthesis reaction that producesmagnesium oxide.

5 0
3 years ago
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