Answer:
The answer to your question is 29.4 grams of H₂SO₄
Explanation:
Data
mass of sulfuric acid
volume = 50 ml
Molarity = 6 M
Process
1.- Write the formula of Molarity
Molarity = moles / volume
-Solve for moles
moles = Molarity x volume
-Substitution
moles = 6 x 0.05
-result
moles = 0.3
2.- Calculate the molar mass of Sulfuric acid
H₂SO₄ = (1 x 2) + (32 x 1) + (16 x 4) = 2 + 32 + 64 = 98 g
3.- Calculate the mass in the solution
98 g of H₂SO₄ ---------------- 1 mol
x ----------------- 0.3 moles
x = (0.3 x 98) / 1
x = 29.4 grams of H₂SO₄
Answer:
The strong acid reacts with the weak base in the buffer to form a weak acid, which produces few H+ ions in solution and therefore only a little change in pH.
Explanation:
When a strong acid is added to the buffer, the acid dissociates and furnish hydrogen ions which combine with the conjugate of the weak acid, forming weak acid. The weak acid dissociates to only some extent and can furnish only some protons and there is no significant change in the pH.
Hence, option B is correct.
Aluminium has 3 valance electrons in its outer shell. This means that it would need to give up 3 electrons to achieve a full octet.
The statement which correctly describe the relationship between the reactants and the yield is this: 'the theoretical yield is calculated from the amount of the limiting reactants present'. The theoretical yields is the ideal maximum amount of a product that can be produced during a chemical reaction while the limiting reactant is the reactant that determines the maximum amount of product that can be formed.
Remember the acronym "Oil Rig". Oxidation is loss, Reduction is gain of electrons. Calcium is losing electrons so it's an oxidation reaction.
