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horrorfan [7]
3 years ago
13

2. A 0.45g sample of mineral ore is analyzed for chromium and found to contain

Chemistry
1 answer:
MrRissso [65]3 years ago
6 0

Answer:

Explanation: I don't know

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The rotational period of the moon is_____
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Why does beryllium lose electrons when forming ionic bonds,while sulfur gains electrons?
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Fluorine is a reactive nonmetal in the Halogen group. What other elements below are also likely to be reactive like fluorine?
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3 years ago
If I have 0.725 moles of gas at a temperature of 105 K and a pressure of 3.75 atmospheres, what is the volume of the gas?
iVinArrow [24]

If I have 0.725 moles of gas at a temperature of 105 K and a pressure of 3.75 atmospheres the volume of the gas 1.66 litres.

Explanation:

Data given:

number of moles of the gas = 0.725

temperature = 105 K

pressure = 3.75 atm

volume of the gas =?

R = 0.08206 Latm/mole Kelvin

Applying the ideal gas law to calculate the volume of the given gas:

PV = nRT

rearranging the equation to calculate volume:

V = \frac{nRT}{P}

putting the values in the equation:

V = \frac{0.08206 X 0.725 X 105}{3.75}

V = 1.66 Litres.

At a temperature of 105 K and pressure of 3.75 atm, 0.725 moles of gas occupy 1.66 litres of volume.

6 0
3 years ago
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