Advertisements
Advertisements
प्रश्न
Calculate the pH of the following solution:
0.3 g of NaOH dissolved in water to give 200 mL of solution.
उत्तर
For 0.3 g of NaOH dissolved in water to give 200 mL of solution:
\[\ce{NaOH -> Na^+_{(aq)} + OH^-_{(aq)}}\]
`["NaOH"] = 0.3 xx 1000/200 = 1.5 "M"`
`["OH"_("aq")^-] = 1.5 "M"`
Then `["H"^+] = 10^(-14)/1.5`
`= 6.66 xx 10^(-13)`
`"pH" = - log(6.66 xx 10^(-13))`
= 12.18
APPEARS IN
संबंधित प्रश्न
Assuming complete dissociation, calculate the pH of the following solution:
0.002 M HBr
Calculate the pH of the following solution:
2 g of TlOH dissolved in water to give 2 litre of solution.
Calculate the pH of the resultant mixtures: 10 mL of 0.2M Ca(OH)2 + 25 mL of 0.1M HCl.
Calculate the pH of the resultant mixtures: 10 mL of 0.01M H2SO4 + 10 mL of 0.01M Ca(OH)2.
Choose the most correct answer:
Which of the following solution will have a pH value equal to 1.0?
Answer the following in one sentence:
The pH of a solution is 6.06. Calculate its H⊕ ion concentration.
Answer the following :
The pH of rainwater collected in a certain region of Maharashtra on a particular day was 5.1. Calculate the H+ ion concentration of the rainwater and its percent dissociation.
Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium chloride?
The CORRECT match between transition metal ion and its colour in aqueous solution.
The pH of 0.001 M HCl solution is ______.
What is the pH of the resulting solution when equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed?
Calculate the pH of 1.5 × 10−3 M solution of Ba(OH)2.
In which of the following solvents is silver chloride most soluble?
What is the pH of a 2.6 × 10-8 MH+ ion solution? (log 2.6 = 0.4150)
The degree of dissociation of 0.1 M monobasic acid is 0.4%. Its dissociation constant is ______.
Derive the relationship between pH and pOH.
Define pOH.
Define pOH.
