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Mrac [35]
3 years ago
8

Calcium carbide reacts with water to produce acetylene gas according to the following equation: CaC2(s) + 2H2O(l)C2H2(g) + Ca(OH

)2(aq) The product gas, C2H2, is collected over water at a temperature of 25 °C and a pressure of 759 mm Hg. If the wet C2H2 gas formed occupies a volume of 8.19 L, the number of moles of CaC2 reacted was ______ mol. The vapor pressure of water is 23.8 mm Hg at 25 °C.
Chemistry
1 answer:
poizon [28]3 years ago
7 0

Answer:

33.7

Explanation:

i just know i had a question on it'

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Sure I'll help you!

Explanation:

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Calculate the volume of naoh solution that contains 0.72 g of a 8.0 % (m/v) naoh solution.
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3 years ago
A technician measures the weight of a reagent . The weight is 3269 g. What is the weight in kilograms ? Write your answer as a d
Georgia [21]

Answer:

3.269 kg

Explanation:

1000g = 1 kg. Since kg is the larger unit, you need to divide by 1000 to get kilograms. You can do the problem as a unit conversion:

3269 g × <u>1 kg</u>  =  3.269 kg

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Hope this is helpful!

5 0
3 years ago
Enter the appropriate symbol for an isotope of phosphorus-32 corresponding to the isotope notation AZX. Express your answer as a
Lelechka [254]

Answer:

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Explanation:

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However, when we talk about the atomic number of the ion, it is not equal to the number of electrons as electron can be gained or loosed.

This is why, more appropriately, the number of the protons which are present in the nucleus of the atom is called the atomic number.

Thus, atomic number of phosphorus = 15

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Given, Mass number = 32

Thus, the symbol of the isotope is:-

^{32}_{15}P

8 0
3 years ago
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natka813 [3]

Answer:

A & E

Explanation:

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Read 2 more answers
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