2 years ago

Which letter indicates the most sudden change in temperature

Chemistry

1 answer:

mr_godi [17]2 years ago

5 0

Answer:

J 9. , indicates the most sudden change in temperature

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How to name the compounds in chemistry using roman numerals khan academy?

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3 years ago

What volume of 24% trichloroacetic acid (tca) is needed to prepare eight 3 ounce bottles of 10% tca solution?

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Answer:

295.7 mL of 24% trichloroacetic acid (tca) is needed .

Explanation:

Let the volume of 24% trichloroacetic acid solution be x

Volume of required 10% trichloroacetic acid solution =8 bottles of 3 ounces

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Amount of trichloroacetic acid in 24% solution of x volume of solution will be equal to amount of trichloroacetic acid in 10% solution of volume 709.68 mL.

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3 years ago

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Sindrei [870]

Answer:

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3 years ago

An adult human lung has a volume of 2.9 liters. If its volume decreases to 1.2 liters and it contains 0.049 mole of air after it

Lera25 [3.4K]

Answer:

In full volume it contain 0.12 moles.

Explanation:

Given data:

Total volume= Vt = 2.9 L

Decreased volume= Vd = 1.2 L

Number of moles of air present in decreased volume= n = 0.049 mol

Number of moles of air in total volume= n = ?

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Formula:

Vt/ Vd = n (in total volume) /n ( decreased volume)

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X = 2.42 × 0.049

X = 0.12 mol

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