Answer:
0.78 M for SO₄²⁻
Explanation:
The chemical formula for aluminium sulfate is Al₂(SO₄)₃
So for a concentration of 0.26 M you have in solution 0.26 moles of Al₂(SO₄)₃ in 1 liter of solution.
But you have three times more sulfate ions SO₄²⁻ in solution, so the molar concentration for this ion will be:
0.26 × 3 = 0.78 M
Answer:
0.0125mol
Explanation:
Molarity (M) = number of moles (n) ÷ volume (V)
n = Molarity × Volume
According to this question, a 0.05M solution contains 250 mL of NaOH. The volume in litres is as follows:
1000mL = 1L
250mL = 250/1000
= 0.250L
n = 0.05 × 0.250
n = 0.0125
The number of moles of NaOH is 0.0125mol.
The correct answer would be b. However they are also all numbered. But the correct answer is B Chemical Symbols.
I’m pretty sure it will be the answer choice B
Answer:
The answer is grass
Explanation:
Grass is a plant, meaning it undergoes photosynthesis to receive its energy from the sun.
