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: I think I’m not sure look on britanica I just asked Siri and it has to do with oxygen
Explanation:
Answer:
24382 J
162790 J
Explanation:
At 0°C, ice requires a certain amount of heat/energy to break its certain bonds and change its state into liquid water. This amount of heat per gram of ice is known as the latent heat of fusion of ice. And this heat is already detrmined and is equal to 334 J/g. Similarly, For water to convert into vapor at 100°C, it requires a certain amount of heat/energy to break its certain bonds and change its state into gas/vapor. This amount of heat per gram of water is known as the latent heat of vaporization of water, and it is equal to 2230 J/g.
Now, for one gram ice, 334 J heat is required for melting, hence for 73g of ice, 73x334 = 24382 J of heat is required.
Now, for one gram water, 2230 J heat is required for melting, hence for 73g of water, 73x2230 = 162790 J of heat is required.
Answer:
True
Explanation:
learned it from class on a video
Answer:
K = [H2] [CO] / [HCHO]
Explanation:
HCHO(g) ⇌ H2(g) + CO(g)
We can obtain the expression for the equilibrium constant for the above equation as follow:
Equilibrium constant, K for a given reaction is the ratio of the concentration of the product raised to their coefficient to the concentration of the reactant raised to their coefficient.
Thus, the equilibrium constant, K for the above equation can be written as follow:
K = [H2] [CO] / [HCHO]
