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solniwko [45]
3 years ago
12

Oil does not dissolve in water because

Chemistry
1 answer:
FinnZ [79.3K]3 years ago
4 0

Answer:

Because oil have apolar molecules, while water have polar molecules

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How many moles of sucrose (C12H22O11) would be in 8.7 L of a 1.1 M solution of sucrose?
poizon [28]

Answer:

9.57 mol.

Explanation:

<em>Molarity is defined as the no. of moles of a solute per 1.0 L of the solution.</em>

<em />

<em>M = (no. of moles of solute)/(V of the solution (L)).</em>

<em></em>

∴ M = (no. of moles of sucrose)/(V of the solution (L)).

1.1 M = (no. of moles of sucrose)/(8.7 L).

<em>∴ no. of moles of sucrose = (1.1 M)(8.7 L) = 9.57 mol.</em>

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4 years ago
Each isotope has a unique half-life. The half-life of an isotope is the time taken for half of the starting quantity to decay (w
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Answer:

b. 17,190

Explanation:

Using the formula for C-14 dating,

t=\dfrac{ln(\dfrac{N}{N_0})t_\frac{1}{2}  }{-0.693}

where Present Value N =1/8 of Parent Sample

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Half Life, t_\frac{1}{2}=5730 years

t=\dfrac{ln(\dfrac{1/8}{1})5730}{-0.693}

=17,190

Therefore the fossil is about 17190 years old.

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3 years ago
The use of crucible​
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a situation of severe trial, or in which different elements interact, leading to the creation of something new.

"their relationship was forged in the crucible of war"

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3 years ago
When scientists looked at the polarity of bands of rock on either side of the mid-ocean ridges, what did they find? A. that ther
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I am pretty sure the answer is D. That the patterns of a polarity matched up on both sides.
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Instant water heating geysers or any other geysers.

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