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Musya8 [376]
3 years ago
8

What should you do if you need to determine the odor of a chemical or a solution?

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
3 0

Answer:

Explanation:

When you are in the laboratory and take a direct sniff of the chemicals you are using, you run the risk of damaging your mucous membranes or your lungs. When it is necessary to smell chemicals in the lab, the proper technique is to cup your hand above the container and waft the air toward your face.

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Atoms join with other atoms by bonding with them in order to become as chemically ____ as possible.
zloy xaker [14]
The answer is B.) stable ... all any atom wants to do is bond with a nother to share or take electrons to have a full valence shell
5 0
3 years ago
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If the Earth had no tilt, how would that affect our seasons? I will give branliest to first comment
Aleks [24]

Answer:

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6 0
3 years ago
What is the pH of a solution formed at the neutralization point by the reaction of 25.0 mL of 0.180 molar acetic acid (Ka = 1.8
zvonat [6]
453.87 (whatever label you use, most highschools are different but i dont want to give you the wrong label!)
5 0
3 years ago
You have 8 moles of a gas at 250 K in a 6 L container. What is the pressure of the gas? Show your work
Bogdan [553]

Hello:

In this case, we will use the Clapeyron equation:

P = ?

n = 8 moles

T = 250 K

R = 0.082 atm.L/mol.K

V = 6 L

Therefore:

P * V = n *  R * T

P * 6 = 8 * 0.082* 250

P* 6 = 164

P = 164 / 6

P = 27.33 atm


Hope that helps!

7 0
4 years ago
How do you calculate the volume of a gas at STP given the number of moles of gas present
S_A_V [24]
The Ideal Gas Law states that pressure (P) × volume (V) is equal to the # of moles (n) of the gas × a constant (R) × temperature (T), such that the equation is:
PV = nRT
At standard temp and pressure (STP), the T is 0°C or 273.15K, the P is 1 atm or 760 torr, and the R constant is 0.0821. Therefore the equation, solved for V becomes: V = nRT/P, or V = n(0.0821)(273)/1, so that it reduces to V = 22.4 Liters, when n = 1 mole.
So the V of any gas at STP is 22.4 L / mole
8 0
4 years ago
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