Answer:
V = 81.14 L
Explanation:
Given data:
Volume of gas = ?
Number of moles = 3.30 mol
Temperature of gas = 25°C
Pressure of gas = 0.995 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+273 = 298 K
now we will put the values in formula:
V = 3.30 mol 0.0821 atm.L/ mol.K 298 K / 0.995 atm
V = 80.74 L. atm / 0.995 atm
V = 81.14 L
Answer: 4.4 x 10^-7
Explanation:
The dissociation equation for this reaction is:
MgCO3 (s) → Mg+2 (aq) + CO3-2 (aq)
(Here 0.08 >>> x )
![\begin{aligned}\Rightarrow 3.5 \times 10^{-8} &=0.08 \times x \\\Rightarrow x &=\frac{3.5}{0.08} \times 10^{-8} \\&=4.37 \times 10^{-7} \\\Rightarrow x & \approx 4.4 \times 10^{-7} \mathrm{~M}\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%5CRightarrow%203.5%20%5Ctimes%2010%5E%7B-8%7D%20%26%3D0.08%20%5Ctimes%20x%20%5C%5C%5CRightarrow%20x%20%26%3D%5Cfrac%7B3.5%7D%7B0.08%7D%20%5Ctimes%2010%5E%7B-8%7D%20%5C%5C%26%3D4.37%20%5Ctimes%2010%5E%7B-7%7D%20%5C%5C%5CRightarrow%20x%20%26%20%5Capprox%204.4%20%5Ctimes%2010%5E%7B-7%7D%20%5Cmathrm%7B~M%7D%5Cend%7Baligned%7D)
So the solubility MgCO₃ in a solution that containing 0.080 M Mg²⁺ is 4.4 x 10^-7
Answer: If two positive charges interact, their forces are directed against each other. The two charges repel each other.
Explanation: The same occurs with two negative charges, because their respective forces also act in opposite directions.) The electric field and resulting forces produced by two electrical charges of the same polarity.
Good luck luv.