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pychu [463]
3 years ago
7

What is the gram atomic mass of sodium?

Chemistry
2 answers:
Rom4ik [11]3 years ago
7 0
3.8175407 × 10^-23 g ± 3.3210778 × 10^-32 g
MatroZZZ [7]3 years ago
5 0
3.8175407 x 10^-23 g + 3.3210778 x 10^-32 g
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200 grams of an organic sample which contains only carbon, hydrogen, and oxygen is analyzed and found to contain 97.30 grams of
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The empirical formula for 200 grams of an organic sample which contains carbon,hydrogen, and oxygen is C3H6O

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3 years ago
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Find the empirical formula of the following compounds:
Aneli [31]

The empirical formula of the following compounds 0.903 g of phosphorus combined with 6.99 g of bromine.

<h3>What is empirical formula?</h3>

The simplest whole number ratio of atoms in a compound is the empirical formula of a chemical compound in chemistry. Sulfur monoxide's empirical formula, SO, and disulfur dioxide's empirical formula, S2O2, are two straightforward examples of this idea. As a result, both the sulfur and oxygen compounds sulfur monoxide and disulfur dioxide have the same empirical formula.

<h3>How to find the empirical formula?</h3>

Convert the given masses of phosphorus and bromine into moles by multiplying the reciprocal of their molar masses. The molar masses of phosphorus and bromine are 30.97 and 79.90 g/mol, respectively.

Moles phosphorus = 0.903 g phosphorus \frac{mol phosphorus}{ 30.97 g phosphorus}= 0.0293 mol

Moles bromine 6.99 g bromine\frac{mol bromine}{79.90 g bromine}=0.0875 mol

The preliminary formula for compound is P0.0293Bro.0875. Divide all the subscripts by the subscript with the smallest value which is 0.0293. The empirical formula is P1.00Br2.99 ≈ P₁Br3 or PBr3

To learn more about empirical formula visit:

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8 0
1 year ago
Chemical reactions that ____ energy will not occur without a source of energy
andrezito [222]
Chemical reactions that release energy will not occur without a source of energy.  So the answer is release.
4 0
3 years ago
What compound is this?
Nezavi [6.7K]

Answer:

Carbon Tetrachloride

Explanation:

1 Carbon atom, 4 chlorine atoms (hence "tetra" prefix)

7 0
2 years ago
Which element has a grater atomic radius ?phosphorus or bismuth?
LuckyWell [14K]

According to periodic trends, bismuth has the greatest atomic radius.

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2 years ago
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