What is the measure how heavy something is?
2 answers:
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Answer:
0.005 M
Explanation:
Given data:
volume of sample solution ( volume of D ) = 5.0 mL
volume of added stock solution ( V1 ) = 5.0 mL
concentration of added stock solution ( N1 ) = 0.02 M
Total volume of concentration ( V2 )= 10 mL = ( 5.0 mL + 5.0mL)
concentration of Total volume of sample ( C2 ) = 0.01
N2 = ( N1V1 ) / V2
= ( 0.02 * 5 ) / 10 = 0.01 m
absorbance of sample solution ( A1 ) = 0.10
absorbance of additional sample solution ( A2 ) = 0.20
attached below is the remaining part of the detailed solution
Answer: 2.796 grams
Explanation:
According to stoichiometry:
1 mole of reacts with 1 mole of
0.012 moles of will react with=
of
Thus is the limiting reagent as it limits the formation of product.
is the excess reagent as (0.018-0.012)=0.006 moles are left unused.
1 mole of produces 1 mole of
0.012 moles of will produce=
of
Mass of
Thus 2.796 grams of are produced.