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KengaRu [80]
3 years ago
11

Imagine that you're doing an experiment that requires you to smell the odor of a chemical solution in a beaker. Which procedure

should always be followed? a. Wave the fumes toward your nose with your hand. b. You should never smell chemicals. c. Hold the beaker directly beneath your nose. d. Remove your safety goggles before smelling the chemicals.
Chemistry
2 answers:
Alex787 [66]3 years ago
8 0
The correct answer is (a) wave the fumes toward your nose with your hand. If you smell the chemicals directly, it could be harmful too your health, especially if they are strong. Also remember to <em>never </em>smell chemicals unless you are being told to do so.
Lelu [443]3 years ago
3 0
Wave the fumes toward your nose with your hand so that you don't smell TOO much of the odor. The answer is A
Hope this helps!
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Find the molar mass of this
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Explanation:

Given problem:

Find the molar mass of:

  SO₃ and C₁₀H₈

Solution:

The molar mass of a compound is the mass in grams of one mole of the substance.

To solve this, we are going to add the individual atomic masses of the elements in the compound;

  Atomic mass;

       S = 32g/mol; O = 16g/mol; C = 12g/mol and H = 1g/mol

For  SO₃;

     = 32 + 3(16)

     = 32 + 48

     = 80g/mol

For C₁₀H₈

      = 10(12) + 8(1)

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Hydrogen gas was collected by water displacement. what was pressure of the h2 collected if the temperature was 26°c?
Vedmedyk [2.9K]
The ideal gas law may be written as
p= \frac{\rho R T}{M}
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ρ =density
T = temperature
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For the given problem,
ρ = 0.09 g/L = 0.09 kg/m³
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Therefore
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p = 2.2195 x 10⁵ Pa
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Answer:
2.2195 x 10⁵ Pa (or 221.95 kPa or 2.19 atm)

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