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DIA [1.3K]
3 years ago
9

What is the molar mass for 5 mol Na

Chemistry
2 answers:
katrin [286]3 years ago
7 0

Answer:

molecular mass if Na  

2

​  

Co  

3

​  

 

=2×23×12+3×16

=46+12+48

=106

no.of mole =  

molecular wt.

Given wt.

​  

5=  

106

wt

 

wt=s30

​

Explanation:

zimovet [89]3 years ago
4 0

Answer:

22.98977 g/

Brainliest please

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Is atmosphere nitrogen denser than pure nitrogen​
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3 years ago
Which contains more hydrogen atoms? a five-carbon saturated hydrocarbon molecule or a five-carbon unsaturated hydrocarbon molecu
Studentka2010 [4]

The organic compound which contains more hydrogen atoms is a five-carbon saturated hydrocarbon molecule

<h3>What are organic compounds?</h3>

Organic compounds are compounds are those compounds containing carbon and hydrogen only.

Some classes of organic compounds are:

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So therefore, the organic compound which contains more hydrogen atoms is a five-carbon saturated hydrocarbon molecule

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4 0
1 year ago
Analysis of an athletes urine found the presence of a compound with a molar mass of 312 g/mol. How many moles of this compound a
rewona [7]
<h3>Answer:</h3>

= 5.79 × 10^19 molecules

<h3>Explanation:</h3>

The molar mass of the compound is 312 g/mol

Mass of the compound is 30.0 mg equivalent to 0.030 g (1 g = 1000 mg)

We are required to calculate the number of molecules present

We will use the following steps;

<h3>Step 1: Calculate the number of moles of the compound </h3>

Moles=\frac{mass}{molar mass}

Therefore;

Moles of the compound will be;

=\frac{0.030}{312g/mol}

      = 9.615 × 10⁻5 mole

<h3>Step 2: Calculate the number of molecules present </h3>

Using the Avogadro's constant, 6.022 × 10^23

1 mole of a compound contains 6.022 × 10^23  molecules

Therefore;

9.615 × 10⁻5 moles of the compound will have ;

= 9.615 × 10⁻5 moles × 6.022 × 10^23  molecules

= 5.79 × 10^19 molecules

Therefore the compound contains 5.79 × 10^19 molecules

5 0
3 years ago
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