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kykrilka [37]
2 years ago
5

How many milliliters of 0. 15 m solution could you prepare?.

Chemistry
1 answer:
jasenka [17]2 years ago
7 0

 25 ml

\_______/

o0o0o0

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What are the properties of organic compounds determined by?
jarptica [38.1K]
The properties of organic compounds is determined by <u>A) Their boiling point</u><u />.
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What is the percent composition of carbon in heptane c7h16
Gnom [1K]

Answer: the percent composition of carbon in heptane is 83.9%

Explanation:

<u>1) Atomic masses of the atoms:</u>

  • C: 12.01 g/mol
  • H: 1.008 g/mol

<u>2) Molar mass of heptane:</u>

  • C₇H₁₆: 7 × 12.01 g/mol + 16×1.008 g/mol = 100.2 g/mol

<u>3) Mass of carbon in one mole of heptane:</u>

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<u>3) Percent composition of carbon:</u>

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           = (84.07 g/ 100.2 g) × 100 = 83.9% ← answer

8 0
3 years ago
What is the percent by mass of oxygen in carbon dioxide (CO2)?
wariber [46]

Answer:

= 72.73%

Explanation:

The percentage by mass of an element is given by;

% element = total mass of element in compounds/molar mass of compound × 100

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8 0
3 years ago
When comparing the two chair conformations for a monosubstituted cyclohexane ring, which type of substituent shows the greatest
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Answer:

See the explanation

Explanation:

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In the axial position, we have a more steric hindrance because we have two hydrogens near to the CH_3 group. If we have <u>more steric hindrance</u> the molecule would be <u>more unstable</u>. In the equatorial positions, we don't <u>any interactions</u> because the CH_3 group is pointing out. If we don't have <u>any steric hindrance</u> the molecule will be <u>more stable</u>, that's why the molecule will <u>the equatorial position.</u>

See figure 1

I hope it helps!

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The following image shows an owl swooping to grab a mouse.
Sloan [31]

Answer:

Predator-prey

Explanation:

Hope this helps.

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