Question

d)
justify that 4.9 g of H,SO, when completely ionized in water, have equal number of
positive and negative charges but the number of positively charged ions
are twice the number of negatively charged ions​

Answer 1

Answer:

Number of moles of H2SO4 = 4.9/98 = 0.5 mole

0.5 mole of H2SO4 yields 1 mole of H+ ions and 0.5 mole of SO4

2-

ions as shown below:

H2SO4 2 H+

+ SO4

2-

0.5 mole 1 mole 0.5 mole

0.5 x 6.02 x 1023 1 x 6.02 x 1023 0.5 x 6.02 x 1023

Molecules ions ions

The relationship shows that total positive charges are equal to total negative charges because each

SO4

2-

ion has -2 charge and two H+ have also +2 charge. However, the above relationship shows that

number of positive ions are twice as compared to negative ions.

Explanation:

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