How many grams of sodium hydroxide must be dissolved in one litre of water to prepare its N/10 solution ? What will be its pH value ?

How many grams of sodium hydroxide must be dissolved in one litre of w

1.	How many grams of sodium hydroxide must be dissolved in one litre of water to prepare its N/10 solution ? What will be its pH value ?
Answer» Solution :For 1 L of 1 N NaOH solution, NaOH DISSOLVED = 1 G EQ. = 40 g `:. ` For 1 L of N/10 NaOH sol. NaOH dissolved `= 40xx(1)/(10) = 4 g` `[OH^(-)]=10^(-1) M :. [H_(3)O^(+)]=10^(-13)M`. `PH = - log 10^(-13)=13`