2 years ago

What is the empirical formula for a compound which is composed of 31.9 g of Mg and 27.1 g P?

Chemistry

1 answer:

ahrayia [7]2 years ago

3 0

Answer:

Answer is on the pic

Explanation:

I hope it's helpful!

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Calculate the energy (in kJ) required to heat 10.1 g of liquid water from 55 oC to 100 oC and change it to steam at 100 oC. The

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Answer:

$\large\boxed{\large\boxed{24.6kJ}}$

Explanation:

1. Energy to heat the liquid water from 55ºC to 100ºC

$Q=m\times C\times \Delta T$

m = 10.1g

C = 4.18g/JºC

ΔT = 100ºC - 55ºC = 45ºC

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2. Energy to change the liquid to steam at 100ºC

$L=\lambda \times n$

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3. Total energy

$1,899.81J+22,762.14J=24,661.95J\approx24,662J\approx24.6kJ$

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What is the empirical formula for a compound which is composed of 31.9 g of Mg and 27.1 g P?​

What is the empirical formula for a compound which is composed of 31.9 g of Mg and 27.1 g P?