14
13
12
11
Correct answer is D
[H+][OH−] = 10 − 4
[H+] =10 − 14 ÷ [OH+]
=10 −14 ÷ (1 × 10 − 3) = 10 − 11
pH = − log10[H+ ]
= − log10[10 − 11] = − 1 × −11
log10[10 − 11] = 1
= − 1 × 11 × 1
= − 11
What type of bond exits between an element X with atomic number 12 and Y with atomic number 17? ...
WHICH OF THE FOLLOWING PETROLEUM FRACTIONS YIELDS VASELINE AND PARAFFIN WAX ON REDISTILLATION? ...
The role of sodium chloride in the preparation of soap is to? ...
An acid and its conjugate base...
Which of the following is true concerning the properties of benzene and hexane? ...
C2H4(g) + H2(g) → C2H6(g) ΔH = -137kJ mol-1 The reaction represented above is...
n monosaccharide \( \underset{Q}{\stackrel{P}{\rightleftharpoons}} \) polysaccharide -n water. In...
In the purification of town water supply, alum is used principally to? ...