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Orlov [11]
2 years ago
8

11 The cross section compares the densities of different Earth layers. Which Earth layer is most dense?

Chemistry
1 answer:
Naily [24]2 years ago
8 0

Answer:

b

Explanation:

i took the quiz

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A 500 ml aqueous solution of na3po4 was prepared using 82g of the solute. what is the molarity​
liraira [26]

Answer:

1 M

Explanation:

The molarity of a solution, M, is a measure of the concentration of that solution and it refers to the number of moles of solute (mol) per liter (L) of solution. The molarity (M) can be calculated using the formula:

M = number of moles (n) /volume (V)

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Molar mass of Na3PO4 = 23(3) + 15 + 16(4)

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Mole = mass/molar mass

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Therefore, Molarity (M) = 0.5/0.500

Molarity = 1 M or 1 mol/L

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