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Veseljchak [2.6K]
3 years ago
13

Question 2

Chemistry
1 answer:
aev [14]3 years ago
7 0

touching a hot stove and burning your hand

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What is potential energy
irina1246 [14]

Hello! Your pal Devy can answer that. In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

4 0
3 years ago
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What is the pressure in a 5.00 L tank with 49.00 grams of oxygen gas at 350 K? ___atm
ziro4ka [17]

Answer:

The right answer is "8.81 atm".

Explanation:

Given:

V = 5.00 L

Mass = 4900 g

MW = 32 g/mol

T = 350 K

Now,

Number of moles will be:

n = \frac{Mass}{MW}

   =\frac{49.00}{32}

   =1.53125 \ mole

By using the ideal gas equation, we get

⇒ PV=nRT

or,

⇒    P=\frac{nRT}{V}

By substituting the values, we get

           =\frac{1.53125\times 0.0821\times 350}{5.00}

           =\frac{44.1}{5.00}

           =8.81 \ atm  

4 0
3 years ago
Calculate the molarity (m) of a solution prepared by dissolving 10.7 g nai in 0.250 l.
Lilit [14]
Molarity is defined as the number of moles of solute in 1 L of solution 
number of moles of NaI - 10.7 g / 150 g/mol = 0.0713 mol 
there are 0.0713 mol in 0.250 L
we need to find the number of NaI moles in 1 L
if 0.250 L contains - 0.0713 mol 
then 1 L contains - 0.0713 mol / 0.250 L  = 0.285 mol/L
molarity is 0.285 M
7 0
4 years ago
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5. Acid + Metal → a Salt + _______
aliya0001 [1]
The answer is Hydrogen

This is what happens when acids react with metals
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4 years ago
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What are the chemical processes used to make chloroquine?
4vir4ik [10]
You spell Chlorine wrong but the process is called electrolysis  
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4 years ago
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