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Oliga [24]
3 years ago
14

Although there are different ways to approach a scientific investigation, all scientific investigations begin with some sort of

Chemistry
2 answers:
Sholpan [36]3 years ago
6 0

Answer:

observation

Explanation:

raketka [301]3 years ago
5 0

Answer: hypothesis or guess

(pls mark me brainliest)

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In a sample containing a mixture of only these gases at exactly one atmosphere pressure, the partial pressures of carbon dioxide
Black_prince [1.1K]

Answer:

Explanation:

The pressure of a gaseous mixture is equal to the sum of the partial pressures of the individual gases:

ΣP_g_a_s = P_1+P_2+P_3+...+P_n

The prompt is trying to confuse you, but it actually tells us the pressure of the mixture to be 1 atm, but this can be converted to torr. Furthermore, we are informed only three gases are in the mixture: diatomic nitrogen, diatomic oxygen, and carbon dioxide:

P_g_a_s=1 \ atm = 760 \ torr= P_N_2+P_O_2+P_C_O_2\\760 \ torr = 582.008 \ torr + P_O_2 \ + 0.285 \ torr

Solve for Po2:

P_o_2=(760-582.008-0.285) \ torr = 177.707 \ torr

Thus, the partial pressure of diatomic oxygen is 177.707 torr.

<u><em>If you liked this solution, hit Thanks or give a Rating!</em></u>

4 0
3 years ago
Which element is most reactive sodium,magnesium, or aluminum and why?
ludmilkaskok [199]
Magnesium would be more reactive.
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Which term names a metamorphic change in rocks over a wide area from tectonic forces in Earth's crust and mantle? A. local metam
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D is the answer. A, B,C are absurd. Doing a little word right there.
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How is the AHfusion used to calculate volume of liquid frozen that produces 1
yulyashka [42]

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option B

Explanation:

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How did you use QPOE?​
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QPOE Files

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