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Dewa

Questions (9)

At 40 c,the value of Kw is 2.9210-14.calculate the [H+] and [OH-] of pure water at 40 c.
1. 1 answer
2. 1,043 views
Why water is a weak electrolyte?
1. 1 answer
2. 355 views
Give two bronsted acid-base that are not Arrhenius bases.
1. 1 answer
2. 785 views
Which of the two is the stronger base?Give your reason.(a) HPO4 2- or PO4 3- (b)HS- or S2-
1. 1 answer
2. 2,591 views
What is the weakness of the Bronsted-Lowry acids and bases theory?
1. 1 answer
2. 1,505 views
1000 g of a 50% (mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution. How many
1. 1 answer
2. 520 views
1000 g of a 50% (mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution. How many
1. 1 answer
2. 500 views
5.85 g of sodium chloride(NaCl) is dissolved in 250 mL OF solution. Calculate mass percentage of the solute.
1. 3 answers
2. 1,610 views
1000g of a 50%(mass percentage) nitric acid solution is to be dil ute to 20%(mass percentage) nitric acid solution.how many lit
1. 2 answers
2. 422 views

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