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Debora [2.8K]
3 years ago
8

11. Which of the following type of surface is wood?

Chemistry
1 answer:
AlexFokin [52]3 years ago
6 0
C. Opaque hope this helped:)
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What is the molarity of a solution containing 55.8 g of mgcl2 dissolved in 1.00 l of solution?
MakcuM [25]
The answer is 0.59 M.

Molar mass (Mr) of MgCl₂ is the sum of the molar masses of its elements.
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Mr(Mg) = 24.3 g/l
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So, 1 mol has 95.2 g/l.

Our solution contains 55.8g in 1 l  of solution, which is 55.8 g/l

Now, we need to make a proportion:
1 mole has 95.2 g/l, how much moles will have 55.8 g/l:
1 M : 95.2 g/l = x : 55.8 g/l
x = 1 M · 55.8 g/l ÷ 95.2 g/l ≈ 0.59 M
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3 years ago
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