Answer:You didn't provide examples
Explanation: Groundwater can cause erosion under the surface as it moves through the soil. During the movement an acid is formed which what causes erosion and deposition.
Hope that helps
Rank the gas molecules CO2, C2H6, H2O, He, H2 in terms of increasing rate of effusion. 1. CO2, C2H6, H2O, He, H2 2. CO2, C2H6, H
Kipish [7]
Ranking the gas molecules in terms of increasing rate of effusion is given as CO2, C2H6, H2O, He, H2
<u>Explanation:</u>
- The rate of effusion a gas is reciprocal to the square root of its molecular weight. The rate of effusion is to be arranged in the increasing rate of effusion.
- Arranging in terms of expanding rate of effusion, that is from heaviest to lightest molecule, (for example from smallest to highest effusion rate). The rate of effusion is higher for lighter molecule and also it effuses slowly.
Molar mass of CO2 = 44.01 g/mol
Molar mass of C2H6 = 30.07 g/mol
Molar mass of H2O = 18.01 g/mol
Molar mass of He = 4 g/mol
Molar mass of H2 = 2.01 g/mol
- When the molecule has a high molecular weight, it slows the rate of effusion. Hence the gas molecules are arranged as CO2, C2H6, H2O, He, H2
Answer:
The answer to your question is pH = 2.2
Explanation:
Data
pH = ?
moles of HCl = 0.927
volume = 150 l
Process
1.- Calculate the Molar concentration of HCl
Molarity = moles / volume (L)
Molarity = 0.927 / 150
= 0.00618
2.- Calculate the pH
pH = -log [HCl]
Substitution
pH = -log [0.00618]
Result
pH = 2.2
Sodium hydroxide (like soda)
Reason - has strong alkaline sodium hydroxide and hydrogen gas when reacted. This is an exothermic reaction-Sodium is heated and may catch on fire and burn with a orange flame.
Answer:
AC₄ will precipitate out first.
Explanation:
A solid will precipitate out if the ionic product of the solution exceeds the solubility product.
Let us check the ionic product
a) A₂B₃
Ionic product = [A]²[B]³
[A] = say "s"
[B] = 0.05 , [B]³ = (0.05)³ = 0.000125
2.3 X 10⁻⁸ = [A]²(0.000125)
[A] = 0.0136
b) AC₄
Ionic product = [A] [C]⁴
[A] = "s"
[A][0.05]⁴ = 4.10 X 10⁻⁸
[A]=0.00656 M
So for ionic product to exceed solubility product, we need less concentration of A in case of AC₄.