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tatyana61 [14]
3 years ago
7

What job uses % vol units?

Chemistry
2 answers:
madam [21]3 years ago
7 0
The answer would be D, Chemistry
Dmitry_Shevchenko [17]3 years ago
3 0

Answer:

d, jobs in analytical chemistry

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A gas has no volume true or false
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The number of hydrogen atoms in 0.050 mol of c3h8o3 is
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Answer:

            2.40 × 10²³ Atoms of Hydrogen

Solution:

The number of hydrogen atoms in C₃H₈O₃ are calculated as;

As, there are eight hydrogen atoms per molecule of C₃H₈O₃, therefore the number of hydrogen atoms per mole of C₃H₈O₃ are calculated as;

            1 mole C₃H₈O₃ contains  =  6.022 × 10²³ Molecules of C₃H₈O₃

So,

       0.05 mole C₃H₈O₃ will contain  =  X Molecules of C₃H₈O₃

Solving for X,

                     X  =  (0.05 × 6.022 × 10²³) ÷ 1

                     X =  3.011 × 10²² Molecules of C₃H₈O₃

As,

            1 Molecule of C₃H₈O₃ contains  =  8 Atoms of Hydrogen

So,

3.011 × 10²² Molecules of C₃H₈O₃ will contain  =  X Atoms of Hydrogen

Solving for X,

                     X =  (3.011 × 10²² × 8) ÷ 1

                     X  =  2.40 × 10²³ Atoms of Hydrogen


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When fossil fuels are no longer available—especially if it happens abruptly, which it potentially will—we're going to see patients dying in hospitals and healthcare facilities due to electricity failure, and this will be particularly acute during natural disasters.”

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