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3 years ago

If 2a=3b and a=6 then b=

Chemistry

2 answers:

Ne4ueva [31]3 years ago

6 0

then b is 4

2a=3b since a=6

2x6=3b

12=3b

b=12/3

b=4

Naya [18.7K]3 years ago

4 0

Answer:

b=4

Explanation:

2a=3b

2a=2*6

2*6=12

2a=12

12=3b

12/3=4

b=4

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Explanation :

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3 years ago

For each pair below, select the sample that contains the largest number of moles. Pair A 2.50 g O2 2.50 g N2

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Answer:

Explanation:

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The atoms sample with the largest number of moles since the masses are the same would be the one with lowest molar mass according the the equation below:

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Molar mass of N₂ = 14 x 2 = 28gmol⁻¹

Number of moles of O₂ = $\frac{2.5}{32}$ = 0.078mole

Number of moles of N₂ = $\frac{2.5}{28}$ = 0.089mole

We see that N₂ has the largest number of moles

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