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Nastasia [14]
2 years ago
6

Why does the sand on a beach get so much warmer than the water on a sunny day?

Chemistry
1 answer:
Aleksandr-060686 [28]2 years ago
5 0
It’s because sand is a poor conductor of heat so when the sun warms the sand, the heat is not disturbed evenly. Also the specific heat of sand is is lower than that of water.
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Type the correct answer in the box. Express your answer to three significant figures.
VladimirAG [237]

<u>Given:</u>

Mass of calcium nitrate (Ca(NO3)2) = 96.1 g

<u>To determine:</u>

Theoretical yield of calcium phosphate, Ca3(PO4)2

<u>Explanation:</u>

Balanced Chemical reaction-

3Ca(NO3)2 + 2Na3PO4 → 6NaNO3 + Ca3(PO4)2

Based on the reaction stoichiometry:

3 moles of Ca(NO3)2 produces 1 mole of Ca3(PO4)2

Now,

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Mass of Ca3(PO4)2 produced = 0.0196 * 310 = 6.076 g

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