Metals are usually givers of electrons.
Answer:
As the larger quantity
As the liquid which dissolves a solid
Explanation:
Solvent is the substance mostly in liquid form which dissolves the solute(e.g solid). The solvent also, is larger when compared to the solute.
Answer:
(a) 7.0 (b) 7.30 (c) 8.42
Explanation:
(a) HBr is a strong acid and NaOH is also a very strong base, hence, the solution will be neutral give a pH of 7.0
(b) HClO3
ClO2- + H20 <=> HClO2- + OH-
ClO2- = 0.1*0.08/0.18 = 0.044M
Kb=Kw/Ka=1.0 x 10^-14/1.1 x 10^-2=9.09x10^-13
[OH-] = 2.0 x 10^-7M
p[OH] = 6.7
pH = 7.3
(c) C6H5COOH
C6H5COO- + H20 <=> C6H5COOH + OH-
[C6H5COO-] = 0.1 * 0.80/0.180 = 0.44
Kb=Kw/Ka=1.0 x 10^-14/6.3 x 10-²=1.59x10^-10
[OH] = 1.59x10-10/0.44 = 2.69x10-6
pOH = 5.58
pH = 8.42
Answer : The mole fraction of NaCl in a mixture is, 0.360
Explanation : Given,
Moles of = 7.21 mole
Moles of = 9.37 mole
Moles of = 3.42 mole
Now we have to calculate the mole fraction of .
Now put all the given values in this formula, we get:
Therefore, the mole fraction of NaCl in a mixture is, 0.360