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Anvisha [2.4K]
2 years ago
10

Help please it’s confusing to me

Chemistry
1 answer:
Colt1911 [192]2 years ago
6 0

Answer:

B, H, E, G, C, D, A, F

Explanation:

The ones closest to the bottom are the oldest

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A solution of H2SO4(aq) with a molal concentration of 4.80 m has a density of 1.249 g/mL. What is the molar concentration of thi
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Imagine we have <span>mass of solvent 1kg (1000g)
According to that: </span>molality =n(solute) / m(solvent) =\ \textgreater \  4.8m = 4.8mole / 1kg
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m(H2SO4) = n(H2SO4)*Mr(H2SO4) =\ \textgreater \=\ \textgreater \  Molarity = 4.8 mole / 1.2 L = 4 M m(H2SO4)  which is =<span>470g

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Polyester and Nylon are examples of synthetic materials called polymers.<br> A. True<br> B. False
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Read 2 more answers
Calculate the number of moles in 7.41 X 1017 atoms Ag.
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A clear understanding of Avogadro's hypothesis proved that 1mole of any substance contains 6.02x10^23 atoms. This indicates that 1mole of Ag contains 6.02x10^23 atoms.

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Xmol of Ag = 7.41x10^17/6.02x10^23 = 1.23x10^-6 mole

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3 years ago
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