Chlorine gas is prepared by the electrolysis of brine, a concentrated solution of sodium chloride in water. 2NaCl + 2H,0 2NAOH + CI, + H, The concentration of brine can be assumed to be 4.00 mol dm-3. a Calculate the mass of sodium chloride dissolved in 250 cm3 of brine. (1 mark) b Each day, the UK produces 2.5 x 10° dm3 of chlorine gas, at RTP, from brine.
Chlorine gas is prepared by the electrolysis of brine, a concentrated solution of sodium chloride in water. 2NaCl + 2H,0 2NAOH + CI, + H, The concentration of brine can be assumed to be 4.00 mol dm-3. a Calculate the mass of sodium chloride dissolved in 250 cm3 of brine. (1 mark) b Each day, the UK produces 2.5 x 10° dm3 of chlorine gas, at RTP, from brine.
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer 8b please simple and clear please
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8.
Chlorine
gas
is prepared by the electrolysis
of brine, a concentrated solution of sodium
chloride in water.
2NaCl + 2H,O
2NaOH + Cl, + H,
The concentration of brine can be assumed to
be 4.00 mol dm-3.
a
Calculate the mass of sodium chloride
dissolved in 250 cm3 of brine.
(1 mark)
b Each day, the UK produces 2.5 x 10° dm3
of chlorine gas, at RTP, from brine.
Calculate the volume of brine required for
chlorine production each day in the UK.
(3 marks)
An organic compound X, contains carbon,
hydrogen and oxygen only. Compound X
has the following percentage composition
by mass: 54.55%, C; 9.09% H.
9.
a
(i) Calculate the empirical formula of X.
(2 marks)
(ii) In an experiment, 0.2103g of a
vaporised sample of X was shown
to occupy 72.0 cm³ at 100°C and
103.0kPa.
Calculate the relative molecular.
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