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Grade 11Physical Chemistry

What is the mass of precepitate formed when 50ml of 16.9% solution of AgNO3 is mixed with 50ml of5.8%NaCl solution?

Mitul vyas

9 Years agoGrade 11

1 Answer

varun

9 Years ago

HELLO MITUL

Moles of AgNO3 = 50x16.9/100 x 170

See there is 50ml of 16.9% of AgNO3

therefore 16.9/100 = 0.169 of AgNO3

Moles of AgNO3 = 50 x 0.169/molecular wt

=50 x 0.169/170

=0.05

so moles of AgNO3 = 0.05

Moles of NaCl = 50 x 5.8/100 x 58.5

=0.0495

so moles of NaCl = 0.05 moles

So AgNO3 + NaCl gives AgCl + NaNO3

so initial moles is

0.05 0.05 0

Mass of AgCl = MASS X MOLAR MASS

=0.05 X 143.5

=7.16g

THANK YOU

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