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:
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Explanation:
The generation of electrical power requires relative motion between a magnetic field and a conductor. In a generator, mechanical energy is converted into electrical energy.
Answer:
Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. ... When light enters a more dense substance (higher refractive index), it 'bends' more towards the normal line.
