Answer:
94.4mg is the answer.
Explanation:
mass of gold = 0.175g = 175mg
no. of moles = given mass / relative atomic mass
n = 175/197
n = 0.888 mol.
From the equation, mole ratio of Gold to Chlorine is 2:3
moles of chlorine = 1.5 × 0.888 = 1.33
no. of moles (chlorine) = mass/(35.5 × 2)
1.33 = m/71
m = 94.4mg
∴ mass of chlorine = 94.4mg
The rate of the reaction defines by the slowest stage. So the rate of the reaction is <span>d. rate = k[b]^2[c].</span>
Answer : The correct option is, (A) silver ion gains electrons more easily and is a stronger oxidizing agent than a chromium(III) ion.
Explanation :
The given half reaction are :
1st half reaction :
The reduction potential of this reaction = +0.80 V
2nd half reaction :
The reduction potential of this reaction = -0.74 V
From the reduction potentials, we conclude that the reaction which have positive reduction potential, they will gain electrons more easily and reduced itself and act as a stronger oxidizing agent.
Or we can say that the reaction which have negative reduction potential, they will lose electrons more easily and oxidized itself and act as a stronger reducing agent.
The reduction potential of 1st half reaction is positive and 2nd half reaction is negative.
Therefore, the silver ion gains electrons more easily and is a stronger oxidizing agent than a chromium(III) ion.
Answer:
B. The bonds are polar and the molecule is nonpolar.
Explanation:
Each bond in the molecule is polar, as indicated by the partial charges on the atoms of the molecule. However, the four atoms are arranged symmetrically around the central atom. In this case, the effects of the partial charges on opposite sides cancel out. As a result, the molecule as a whole is nonpolar. If exposed to an electric field, the molecule will not orient itself in any particular direction.