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3 years ago

The mass of a large order of french fries is about 170 G what is its approximate weight in pounds

Chemistry

1 answer:

kap26 [50]3 years ago

8 0

Answer:

0.374 Pound Approximately

Solution:

Gram and Pound are related as,

1 Gram = 0.0022 Pound (approximately)

As we are given with 170 g of French Fries, so it can be converted into pounds as,

1 Gram = 0.0022 Pound

So,

170 Grams = X Pounds

Solving for X,

X = (170 Gram × 0.0022 Pounds) ÷ 1 Gram

X = 0.374 Pound Approximately

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Mass of $B_2H_6$ = 296.1 g

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The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$Moles= \frac{296.1\ g}{27.66\ g/mol}$

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1 mole of $B_2H_6$ react with 3 moles of oxygen

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A sample of pure lithium chloride contains 16% lithium by mass. What is the % lithium by mass in a sample of pure lithium carbon

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Answer:

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Explanation:

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Percentage by mass of lithium in LiCl = (7/42.5) * 100% = 16.4 % aproximately 16%

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Percentage by mass of lithium in 85.0 g Li₂CO₃ = (16.15/85.0) * 100 % = 19.0%

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