Answer:
- The answer is the concentration of an NaOH = 1.6 M
Explanation:
The most common way to solve this kind of problem is to use the formula
In your problem,
For NaOH
C₁ =?? v₁= 78.0 mL = 0.078 L
For H₂SO₄
C₁ =1.25 M v₁= 50.0 mL = 0.05 L
but you must note that for the reaction of NaOH with H₂SO₄
2 mol of NaOH raect with 1 mol H₂SO₄
So, by applying in above formula
- (C₁ * 0.078 L) = (2* 1.25 M * 0.05 L)
- C₁ = (2* 1.25 M * 0.05 L) / (0.078 L) = 1.6 M
<u>So, the answer is the concentration of an NaOH = 1.6 M</u>
18 x 10^23. This is the answer because there are 6.022 x 10^23 atoms of carbon and 12.044 x 10^23 atoms of oxygen in one mole of CO2, if you combine them, you get 18 x 10^23
Answer:
Mass? Molar mass? Grams? Or Mols?
Answer: pH = 10.92
Explanation:
To determine the pH of an aqueous solution, we use the following mathematical relation; pH = - log [H3O+]
= - log (6 x 10∧ -12)
= 12 - 1.08
pH = 10.92
There are 6 electrons in the atom of a carbon.
The first atomic level will be occupied by 2 electrons while the second will be occupied by 4 electrons.
Based on this, the outer valence shell of carbon (which is L shell) will be occupied by 4 electrons.
