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Leni [432]
4 years ago
7

5.25 x 10^32 atoms of K to grams

Chemistry
1 answer:
NNADVOKAT [17]4 years ago
3 0

Answer:

3.40x10¹⁰ grams

Explanation:

First we<u> convert 5.25x10³² atoms to moles</u>, using <em>Avogadro's number</em>:

5.25x10³² atoms ÷ 6.023x10²³ atoms/mol = 88.72x10⁸ mol

Then we<u> convert K moles to grams</u>, using its <em>molar mass</em>:

88.72x10⁸ mol * 39 g/mol = 3.40x10¹⁰ g

So 5.25x10³² atoms of K would weigh 3.40x10¹⁰ grams.

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If a thimble holds 5 mi of water, how many liters can it hold
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Fill in the blank in order to complete the path for pollen as it fertilizes a plant:anther → stigma --&gt; style → _____________
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2 years ago
Calculate the mass of nitrogen dissolved at room temperature in an 86.0 L home aquarium. Assume a total pressure of 1.0 atm and
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Answer:

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Explanation:

According to Dalton's Law of partial pressure:

P_{N_2}=P_{Total}X_{N_2}

Where,

P_{N_2} is the partial pressure of nitrogen

P_{Total} is the Total pressure

X_{N_2} is the mole fraction of nitrogen

Given :

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Partial pressure of nitrogen:

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Moles = Solubility (Concentration dissolved)×Volume

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Also,

moles=\frac{Mass(m)}{Molar\ mass (M)}

Mass\ of\ nitrogen=moles\times {Molar\ mass}

Molar mass of nitrogen gas = 28 g/mol

So,

<u>Mass of nitrogen gas dissolved = 0.0419 moles×28 g/mol = 1.1732 grams</u>

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