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3 years ago

What is volume if the diameter of a sphere is 14cm

Chemistry

1 answer:

lisov135 [29]3 years ago

6 0

Volume = (4/3) × π × r^3
R = 1/2 D
R = 7

V = 4/3 x π x 7^3

Exact Form:
1372 π/ 3

Decimal Form:
1436.75504024

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Answer: The percentage yield of water is 9.5 %

Explanation:

We are given:

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Moles of oxygen = 10 moles

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By Stoichiometry of the reaction:

2 moles of hydrogen gas reacts with 1 mole of oxygen gas

So, 14 moles of hydrogen gas will react with = $\frac{1}{2}\times 14=7mol$ of oxygen gas

As, given amount of oxygen gas is more than the required amount. So, it is considered as an excess reagent

Thus, hydrogen gas is considered as a limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

2 moles of hydrogen gas produces 2 moles of water

So, 14 moles of hydrogen gas will produce = $\frac{1}{2}\times 14=7mol$ of water

To calculate the percentage yield of water, we use the equation:

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Putting values in above equation, we get:

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3 years ago

Which reactions are oxidation-reduction reactions? check all that apply. fes(s) 2hcl(aq) â†’ h2s(g) fecl2(g) agno3(aq) nacl(aq)

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2C3H6(g) + 9O2(g) → 6CO2(g) + 6H2O(g)

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Oxidation state of Carbon = +4

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Here, carbon's oxidation state is rising from +2 to +4. As a result, it is oxidizing and the oxygen's oxidation state is decreasing from 0 to -2. As a result, it is decreasing.

For reaction,

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When reacting:

Iron's oxidation state is +3.

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Iron's oxidation state is zero.

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Here, carbon's oxidation state is rising from +2 to +4. As a result, it is being oxidized and the iron's oxidation state is changing from +3 to 0. As a result, it is decreasing.

To learn more about oxidation-reduction from given link

brainly.com/question/5794822

#SPJ4

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2 years ago

What is volume if the diameter of a sphere is 14cm​

What is volume if the diameter of a sphere is 14cm