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Nutka1998 [239]
2 years ago
6

If 250 g of calcium chlorate decomposes into calcium chloride and oxygen what mass of oxygen would be produced

Chemistry
1 answer:
Naya [18.7K]2 years ago
6 0

Answer:

115.936g

Explanation:

Ca(ClO3)2 -->CaCl2 +3 O2

One mole of calcium chlorate give up three moles of oxygen.

Molar mass of calcium chlorate is

40+(35.5+16*3)*2 = 207g/mol

Therefore there are

250g/207=

1.207mol of calcium cholrate...

So 1.207*3=3.623mol

Therefore 3.623mols of Oxygen must be produced.

Mass of the oxygen gas is equal to 3.623mol*32g/mol =115.936g

(O2 molar mass 32g/mol)

Cheers

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Answer: The are bodies of rock or gas that are named for ancient gods.

Explanation:

Earth is the THIRD planet in the solar system. It support life of all living organisms.

VENUS is the second planet in our solar system. It is named after the Roman goddess of love and beauty.

MARS is the fourth planet in our solar system. It is named after the Roman goddess of war.

Thus, Venus and Mars, are EARTH NEIGHBORS

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According to the quantum-mechanical model for the hydrogen atom, which electron transition produces light with the longer wavele
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The main task here is that there are some missing gaps in the above question that needs to be filled with the appropriate answers. So, we are just going to do rewrite the answer below as we indicate the missing gaps by underlining them and making them in bold format.

SO; In the quantum-mechanical model of the hydrogen atom.

As the n level increases. the energy <u>increases</u> and thus levels are <u>closer to </u>each other. Therefore, the transition <u>3p→2s</u> would have a greater energy difference than the transition from <u>4p→3p.</u>

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A food product is being frozen in a system capable of removing 6000 kJ of thermal energy. The product has a specifi c heat of 4
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Answer : The exit temperature of the product is, -35.2^oC

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Q =  Total heat = 6000 kJ

m = mass of product = 15 kg

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L_f = latent heat of fusion = 275kJ/kg

c_2 = specific heat of frozen = 2.5kJ/kg^oC

T_1 = initial temperature of liquid = 2^oC

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Thus, the exit temperature of the product is, -35.2^oC

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