Answer:
55.9 g KCl.
Explanation:
Hello there!
In this case, according to the definition of molality for the 0.500-molar solution, we need to divide the moles of solute (potassium chloride) over the kilograms of solvent as shown below:
Thus, solving for the moles of solute, we obtain:
Since the density of water is 1 kg/L, we obtain the following moles:
Next, since the molar mass of KCl is 74.5513 g/mol, the mass would be:
Regards!
Answer:
The average kinetic energy of the oxygen molecules in the container increases
Explanation:
I searched up, "what happens when the temperature of oxygen gas is increased''
As the temperature increases, the average kinetic energy increases as does the velocity of the gas particles hitting the walls of the container. The force exerted by the particles per unit of area on the container is the pressure, so as the temperature increases the pressure must also increase.
this is the answer google gave me so im not sure of you should 100% trust it but its better than nothing
SIMPLIFIED: They are created to keep us safe so we wont do anything ridiculously stupid
Answer:
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Explanation:
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