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Setler79 [48]
1 year ago
6

Explain how to calculate the number of grams in 5.50 x 1022 atoms.

Chemistry
1 answer:
Neporo4naja [7]1 year ago
7 0

Answer:

See below

Explanation:

From periodic table, find Mole Weight of the element in question

 this is the grams of the element in Avagadro's Number (6.022 x 10^23)  of atoms

   (5.50 x 10^22) / (6.022 x 10^23)  x mole weight = grams

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At 650 mm hg a gas has a volume of 190 l what is its volume at standard pressure
vovangra [49]

Answer:Volume occupied by the gas at standard pressure is 162.5 L.

Explanation:

Pressure of the gas when it occupies volume of 190 L = 650 mmHg

Volume occupied by the gas when the gas is at standard pressure.

The value of standard pressure = 1 atm = 760 mmHg

P_1=650 mmHg,V_1=190 L,P_2=760 mmHg,V_2=?

According to Boyle's Law: Pressure\propto \frac{1}{Volume} (at constant temperature)

P_1\times V_1=P_2\times V_2

V_2=\frac{P_1\times V_1}{P_2}=\frac{650 mmHg\times 190 L}{760 mmHg}=162.5 L

Volume occupied by the gas at standard pressure is 162.5 L.

6 0
3 years ago
Name 2 ways forelimbs are different than hind limbs.
Allisa [31]
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3 years ago
A student measures a mass of an 8cm3 block of brown sugar to be 19.9G. what is the density of the brown sugar?
Naily [24]

Answer:

<h2>2.49 g/cm³</h2>

Explanation:

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density =  \frac{mass}{volume} \\

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<h3>2.49 g/cm³</h3>

Hope this helps you

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B mg * 1mL/ 60.0 mg = C mL <span>oxcarbazepine</span>
8 0
3 years ago
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Who discovered the electron and what instrument did he use?
Leni [432]

Answer:J.J. Thomson, he was using a high-vacuum cathode-ray tube

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3 years ago
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