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Mazyrski [523]
3 years ago
12

Why do scientists study the natural world to find solutions to human problems?

Chemistry
1 answer:
Vlad1618 [11]3 years ago
5 0

5e earth holds many answers to things we don’t know about.

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What ion is formed When a atom Of mercury (hg) Loses two electron
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"How many grams of CaCl2 would be dissolved in 1.0 L of a 0.10 M solution of CaCl2? "
lukranit [14]

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2365 g

Explanation:

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3 years ago
What is the mass in grams of 9.45*10^24 molecules of methanol (CH3OH)?
Angelina_Jolie [31]
Number of moles:

1 mole ---------- 6.02x10²³ molecules
? moles --------- 9.45x10²⁴ molecules

1 x ( 9.45x10²⁴) / 6.02x10²³ =

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Therefore:

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1 mole ------------ 32.04 g
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Mass methanol  = 15.69 x 32.04 / 1 => 502.7076 g


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