molarity of the CuSO₄ solution = 0.68 moles/L
Explanation:
The formula for molar concentration is:
molar concentration (molarity) = number of moles / solution volume (L)
number of moles = mass / molecular weight
number of moles of CuSO₄ = 12.304 / 159.6
number of moles of CuSO₄ = 0.07709 moles
molar concentration of the CuSO₄ solution = 0.07709 / 0.1127
molar concentration of the CuSO₄ solution = 0.68 moles/L
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Answer:
Respiration
Explanation:
Mitochondria convert glucose and oxygen to carbon dioxide, water. This reaction (respiration) releases energy whigh can be used to climb a tree and much more.
Answer:
99 L
Explanation:
Step 1: Given data
Moles of nitrogen: 4.4 moles
Step 2: Calculate the volume occupied by 4.4 moles of nitrogen
The volume occupied by a gas depends on other conditions such as pressure (P) and temperature (T). If we have this information, we can calculate the volume of the gas using the ideal gas condition.
P × V = n × R × T
Since the task doesn't inform the conditions, we can assume it is under standard pressure (1 atm) and temperature (273.15 K). At STP, 1 mole of any gas occupies 22.4 L.
4.4 mol × 22.4 L/1 mol = 99 L
<h2>
Hello!</h2>
The answer is:
When the pressure that a gas exerts on a sealed container changes from
22.5 psi to 19.86 psi, the temperature changes from 110°C to
65.9°C.
<h2>
Why?</h2>
To calculate which is the last pressure, we need to use Gay-Lussac's law.
The Gay-Lussac's Law states that when the volume is kept constant, the temperature (absolute temperature) and the pressure are proportional.
The Gay-Lussac's equation states that:
We are given the following information:
We need to remember that since the temperatures are given in Celsius degrees, we need to convert it to Kelvin (absolute temperature) before use the equation, so:
Now, calculating we have:
Hence, the final pressure is equal to 19.86 Psi.
Have a nice day!
