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2 years ago

HELP ME PLEASE WILL GIVE MORE POINTS AND BRAINLIEST!!

Chemistry

1 answer:

Sedbober [7]2 years ago

7 0

✅Show work regardless if student got answer correct or incorrect

q = mC∆T

q = (30.0g)(0.900J/goC)(50oC)

q = 1350 J

So, the right answer is 1350 J

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Which of the following statements about Ideal Gas Law is supported by Charles's Law?

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Answer:

Explanation:

volume occupied by fixed amount of gas is directly proportional to its absolute temperature.

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2 years ago

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HURRY I WILL GIVE YOU BRAINLIEST

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dim? im not so fluent in this but i did research yesterday

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How Could Spectroscopy Be Used to Distinguish Between the Following

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Spectroscopy be used to distinguish between the following is the compound B has a peak at 3200 – 3500 cm⁻¹ in its IR spectrum.

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2 years ago

A gas has a volume of 590 mL at temperature of -55.0 C. What volume will the gas occupy at 30.0 C show your work

DENIUS [597]

Data:
$V_{initial} = 590\:mL$
$T_{initial} = -55.0^0C$
converting to Kelvin
TK = TC + 273
TK = -55.0 + 273 → TK = 218.0 → $T_{initial} = 218.0\:K$
$V_{final} = ? (in\:milliliters)$
$T_{final} = 30.0^0C$
TK = TC + 273
TK = 30.0 + 273 → TK = 303.0 → $T_{final} = 303.0\:K$

By the first Law of Charles and Gay-Lussac, we have:
$\frac{ V_{i} }{ T_{i} } = \frac{ V_{f} }{ T_{f} }$

Solving:
$\frac{ V_{i} }{ T_{i} } = \frac{ V_{f} }{ T_{f} }$
$\frac{ 590 }{ 218.0 } = \frac{ V_{f} }{ 303.0 }$
Product of extremes equals product of means:
$218.0* V_{f} = 590*303.0$
$218.0 V_{f} = 178770$
$V_{f} = \frac{178770}{218.0}$
$\boxed{\boxed{V_{f} \approx 820.04\:mL}}\end{array}}\qquad\quad\checkmark$

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3 years ago

1. a) Name two examples of good conductors?

Pachacha [2.7K]

A. good conductors - copper, aluminium

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c. insulator - paper, wood

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