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Basile [38]
3 years ago
7

PLEASE HELP ME ASAP!!! I need the answer to #9. If you can show work please do.

Chemistry
1 answer:
scoundrel [369]3 years ago
7 0

The correct answer would be 32/16s


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Water samples containing dissolved substances are called _____ solutions. A. solvent B. aqueous C. anhydrous D. elementary
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The answer is B. hopes it help  you.!!
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3 years ago
(C6H6) can be biodegraded by microorganism. if 30 mg of benzene is present, what amount of oxygen required for biodegradation, n
quester [9]

Answer:

36.92 mg of oxygen required for bio-degradation.

Explanation:

5C_6H_6+15O_2\rightarrow 12CO_2+15H_2O

Mass of benzene = 30 mg = 0.03 g (1000 mg = 1 g )

Moles benzene =\frac{0.03 g}{78 g/mol}=0.0003846 mol

According to reaction 5 moles of benzene reacts with 15 moles of oxygen gas.

Then 0.0003846 mol of benzene will react with:

\frac{15}{5}\times 0.0003846 mol=0.0011538 mol of oxygen gas

Mass of 0.0011538 moles of oxygen gas:

0.0011538 mol × 32 g/mol = 0.03692 g = 36.92 mg

36.92 mg of oxygen required for bio-degradation.

4 0
3 years ago
Using ethanol and sodium or potassium cyanide as the sources of the carbon atoms, along with any necessary inorganic reagents, s
11Alexandr11 [23.1K]

Answer:

Please see attachment

Explanation:

Please see attachment

3 0
3 years ago
How many significant figures are in 3.02 x 108 ?<br> a<br> 2<br> b 4<br> C 5<br> d 3
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the answer has 5 Numbers

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Which is denser 10g of shampoo or 10kg of the same shampoo? Please explain! Thanks!
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3 years ago
Read 2 more answers
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