Answer:
2.3 * 10^-5
Explanation:
Recall that the solubility of a solute is the amount of solute that dissolves in 1 dm^3 or 1000cm^3 of solution.
Hence;
Amount of calcium oxalate = 154 * 10^-3/128.097 g/mol = 1.2 * 10^-3 mols
From the question;
1.2 * 10^-3 mols dissolves in 250 mL
x moles dissolves in 1000mL
x = 1.2 * 10^-3 mols * 1000/250
x= 4.8 * 10^-3 moldm^-3
CaC2O4(s) ------->Ca^2+(aq) + C2O4^2-(aq)
Hence Ksp = [Ca^2+] [C2O4^2-]
Where;
[Ca^2+] = [C2O4^2-] = 4.8 * 10^-3 moldm^-3
Ksp = (4.8 * 10^-3)^2
Ksp = 2.3 * 10^-5
The answer can be found using the ideal gas law equation, PV = nRT. Using this equation and plugging in the values known with the R constant 0.0821, the answer found is 47 L.
Hope this helps!
Answer:
compounds
Explanation:
Compounds – pure substances that are the unions of two or more elements. They can be broken into simpler substances by chemical means.
Because their species is in danger of going extinct<span />
Answer:
Please don't ask questions like this. People are asking questions that might depend their grade for the year. Please go to another site to say this.
Explanation: