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Nikolay [14]
3 years ago
5

Can some1 please answer these questions

Chemistry
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

the answer of your question is yes

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Calculate the molarity of a 17.5% (by mass) aqueous solution of nitric acid. Select one: a. 2.74 m b. 4.33 m c. 0.274 m d. 3.04
den301095 [7]

Answer:

Option e.

Explanation:

Molarity is the concentration that indicates moles of solute in 1 L of solution.

We have another concentration, percent by mass.

Percent by mass indicates mass of solute in 100 g of solution.

Our solute is HNO₃, our solvent is water.

17.5 g of nitric acid is the mass of solute. We can convert them to moles:

17.5 g . 1mol / 63g = 0.278 moles

We do not have volume of solution. We assume the mass is 100 g because the percent by mass but we need density to state the volume.

Density = Mass / Volume

Mass / Density = Volume

Once we have the volume, we need to be sure the units is in L, to determine molarity

M = mol /L

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3 years ago
Which one of the following is not responsible
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Heavy rainfall because that’s a natural thing that happens and can never stop
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Lucia drew a diagram to compare animal cells and plant cells. Which label belongs in the area marked Y?
Juli2301 [7.4K]

Answer:

Golgi body

Explanation:

8 0
3 years ago
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How do you convert ounces to grams
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However many ounces you have, just multiply that by 28.34952. The answer to that is the conversion. so 5 ounces is 141.7476. Proof below.

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What is the ph of a peach with a [ –oh] = 3.2 × 10 –11 m?
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H+= 10^-14 / [OH-1 = 3.125 * 10^-4 M
pH=-log(H+) = 3.505

Just round it down and your answer = 3.5
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2 years ago
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