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yulyashka [42]
3 years ago
9

What happens to pressure if temperature increases?

Chemistry
2 answers:
krok68 [10]3 years ago
6 0

as the temp increases the pressure increases to.

mixas84 [53]3 years ago
6 0

Answer:

Increase in temperature leads to increase in pressure

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2Na + CaF2à 2NaF + Ca is an example of a _________ chemical reaction.
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<span>2 Na + CaF</span>₂<span> = 2 NaF + Ca

is an example of a </span>single- replacement

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A 258-ml sample of mek, an industrial solvent, is found to have a mass of 0.599 g at and 100c. what is the molar mass of mek?
SVETLANKA909090 [29]
<span>Correct answer is : 72.0 g/mole If we assume Ideal Gas Law, PV = nRT. n = PV/RT = ((0.988 atm)*(0.258 L))/((0.0821 L*atm/mole*K)*(100 + 273.15)) = 0.00832 moles Molar mass = 0.599 g/0.00832 moles = 72.0 g/mole; your answer is E.</span>
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3 years ago
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HELPPP ... short response
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Answer:

Matter cannot be created or destroyed in chemical reactions.

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3 years ago
An aqueous solution that is 20.0 percent sulfuric acid (h2so4) by mass has a density of 1.105 g/ml. determine the molarity of th
GuDViN [60]

The definition of molarity is:

Molarity = moles of solute / total volume of solution in Liters

In this case, our solute is Sulfuric Acid. To solve this problem, let us assume a basis for calculation.

Let us say that,

Total mass of solution = 100 g

Therefore mass of H2SO4 = 20 g

<span>The molar mass of H2SO4 = 98.079 g / mol</span>

 

Calculating for number of moles of H2SO4:

number of moles = <span>20 g / (98.079 g / mol)</span>

number of moles = 0.204 mol

 

Calculating for the volume of solution using the density:

<span>total volume of solution = 100 g / (1.105 g / mL)</span>

<span>total volume of solution = 90.50 mL = 0.0905 L</span>

 

Therefore the molarity is:

Molarity = 0.204 mol / 0.0905 L

Molarity = 2.2542 mol / L

<span>Molarity = 2.25 M</span>

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3 years ago
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B. The earth correct answer.
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