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mr Goodwill [35]
3 years ago
7

A chemist has 2.0 mol of methanol (CH3OH). The molar mass of methanol is 32.0 g/mol. What is the mass, in grams, of the sample?

Chemistry
2 answers:
lina2011 [118]3 years ago
6 0
Given: 2.0 mol of methanol, molar mass of methanol(32.0 g/mol)
Wanted: Grams of 2.0 mol of methanol

Grams of solute= 2.0mol * 32.0g/1 mole = x

2.0 * 32.0 = [64.0g CH3OH]

Hope this is helpful!
grigory [225]3 years ago
6 0
<h3>Answer:</h3>

                 Mass  =  64 g

<h3>Solution:</h3>

             Mole is the quantity of a substance that contains number of particles exactly equal to particles found in 12 g of Carbon-12. The number of particles are 6.022 × 10²³ also called as Avogadro Number. Mole is given as,

                         Mole =  Mass / Molar Mass    ----- (1)

Data Given;

                  Mole  =  2.0 mol

                  M.Mass  =  32.0 g.mol⁻¹

                  Mass  =  ??

Solving equation 1 for Mass,

                  Mass  =  Mole × M.Mass

Putting values,

                  Mass  =  2.0 mol × 32.0 g.mol⁻¹

                 Mass  =  64 g

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4 0
2 years ago
What mass of fes is formed if 9.42 g of fe reacts with 68.0 g of s8? 8fe(s) + s8(s) → 8fes(s)?
allochka39001 [22]
From the equation, we see that the molar ratio of Fe : S required is:

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The moles of Fe present are: 9.42/56 = 0.168
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1 : 1.6

Therefore, iron is the limiting reactant as it is present in a ratio lower than that required. The ratio of

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So 0.168 moles of FeS will form. The mass of FeS will be:

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4 0
3 years ago
Ordered: 0.3 gm. Available: 300 mg/tablet. How many tablets should be given?
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1 tablet

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