Balanced when there are equal numbers of each kind of atom
Answer:
Number of moles = 0.01 mole
Explanation:
Given data:
Volume of gas = 0.1 L
Number of moles = ?
Temperature of gas = 25.0°C
Pressure of gas = 2.50 atm
Solution:
The given problem will be solve by using general gas equation,
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 0.0821 atm.L/ mol.K
T = temperature in kelvin
Now we will convert the temperature.
25+273K = 298 K
by putting values,
2.50 atm × 0.1 L = n × 0.0821 atm.L/ mol.K × 298 K
0.25 atm.L = n × 24.47atm.L/ mol
n = 0.25 atm.L /24.47atm.L/ mol
n = 0.01 mol
I didn't understand your question at first, I believe an acceptable answer would be As and Ar.
As (arsenic) is a metalloid and Ar (argon) is a noble gas.
Hopefully I was able to help you! :)
Since there is one mole of Ca^2+ in calcium acetate, its concentration is 0.80 mol/L.
<h3>What is concentration?</h3>
The term concentration has to do with the amount of substance in solution. The concentration can be measured in several units. Generally, concentration is expressed in molarity, molality, mass concentration units or percentage.
Now we are asked to find the amount concentration of calcium ions and acetate ions in a 0.80 mol/L solution of calcium acetate. The formula of calcium acetate is Ca(CH3COO)2.
Thus;
Ca(CH3COO)2(aq) ----> Ca^2+(aq) + 2CH3COO^-(aq)
It then follows that since there is one mole of Ca^2+ in calcium acetate, its concentration is 0.80 mol/L.
Learn more about concentration:brainly.com/question/10725862
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