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marysya [2.9K]
3 years ago
7

Help me please :3 :3 :3 ;3

Chemistry
1 answer:
Alona [7]3 years ago
8 0
I think the answer is C.
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3.75 g of an unknown gas at 59 °C and 1.00 atm is stored in a 1.35-L flask. What is the molar mass of the gas?
MAXImum [283]
You need to find moles of the gas, so you would use the ideal gas law:
PV=nRT
Pressure
Volume
n=moles
R= gas constant
Tenperature in Kelvin
n= PV/RT
(1.00atm)(1.35L)/(.08206)(332K) = 0.050mol
Molar mass is grams per mole, so
(3.75g/.050mol) = 75g/mol
4 0
3 years ago
I need this ASAP thank you
Rainbow [258]

Answer:

16,,24Mg 17,,a24.1 18a mass number of the most abundant isotope

Explanation:

atomic number of Mg is 12 ,therefore its mass number should be the value that is very close to 24.

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2 years ago
Your taking a walk in a warm fall morning the temperature is about 70 degrees Fahrenheit and you cannot see a cloud anywhere in
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The relative humidity is low

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8 0
3 years ago
Which of the following environments are low-level areas that can be temporarily or seasonally filled with water?
Oliga [24]

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The ionization of pure water forms _____. hydroxide ions only hydronium ions only hydronium and hydroxide ions hydrogen and oxyg
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