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2 years ago

7

What is group 3-12 on the piratic table

1 answer:

katen-ka-za [31]2 years ago

4 0

If you mean periodic table, then it's metals

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How would you separate copper sulfate crystals from its solution?

tia_tia [17]

Answer: You would separate it by dissolving them.

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3 years ago

Determine physiological temperature, 98.6 F in degree C

Salsk061 [2.6K]

Answer:

37

Explanation:

( 98.6 - 32 ) × 5(100c) ÷ 9(180f) = 37

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2 years ago

A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate t

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2 years ago

Read 2 more answers

In a mixture of hydrogen and nitrogen gases, the mole fraction of nitrogen is 0.333. If the partial pressure of hydrogen in the

notka56 [123]

Answer:

$P_T=112.4torr$

Explanation:

Hello there!

In this case, since these problems about gas mixtures are based off Dalton's law in terms of mole fraction, partial pressure and total pressure, we can write the following for hydrogen, we are given its partial pressure:

$P_{H_2}=x_{H_2}*P_T$

And can be solved for the total pressure as follows:

$P_T=\frac{P_{H_2}}{x_{H_2}}$

However, we first calculate the mole fraction of hydrogen by subtracting that of nitrogen to 1 due to:

$x_{H_2}+x_{N_2}=1\\\\x_{H_2}=1-0.333=0.667$

Then, we can plug in to obtain the total pressure:

$P_T=\frac{75.0torr}{0.667}\\\\P_T=112.4torr$

Regards!

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2 years ago

Help please i give brainlist

shtirl [24]

The order of the answers are as follows:
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3 years ago