3 years ago

Which of the following would improve the experimental design of this investigation? why?

Chemistry

1 answer:

Sliva [168]3 years ago

3 0

Answer:

ask your teaacher

Explanation:

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3 years ago

What if you measured 15cc of liquid elemental mercury, how much would that weigh in pounds

PIT_PIT [208]

Answer:

0.447 pounds

Explanation:

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3 years ago

At the beginning of the experiment, the aspirin pill contains 325 mg of acetylsalicylic acid and weighs 400 mg. at the end of ex

Feliz [49]

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= 33.85 %

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3 years ago

What experimental evidence was provided for the nuclear model of an atom

UkoKoshka [18]

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3 years ago

How much heat is lost when 0.440 mol of steam condenses at 100 °C?

dusya [7]

Answer:

17,890 J

Explanation:

The amount of heat released by a gaseous substance when it condenses is given by the formula

$Q=n\lambda_v$

where

n is the number of moles of the substance

$\lambda_v$ is the latent heat of vaporization

The formula can be applied if the substance is at its vaporization temperature.

In this problem, we have:

n = 0.440 mol is the number of moles of steam

$\lambda_v=40,660 J/mol$ is the latent heat of vaporization of water

And the steam is already at 100C, so we can apply the formula:

$Q=(0.440)(40660)=17,890 J$

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4 years ago