when 2.61 g of solid Na2CO3 is dissolved in sufficient water to make 250 mL of s
ID: 1044887 • Letter: W
Question
when 2.61 g of solid Na2CO3 is dissolved in sufficient water to make 250 mL of solution, concentration of Na2CO3 is:The answer is 0.0985 M, need to know how to get it! when 2.61 g of solid Na2CO3 is dissolved in sufficient water to make 250 mL of solution, concentration of Na2CO3 is:
The answer is 0.0985 M, need to know how to get it! when 2.61 g of solid Na2CO3 is dissolved in sufficient water to make 250 mL of solution, concentration of Na2CO3 is:
The answer is 0.0985 M, need to know how to get it!
Explanation / Answer
Answer:-
mass of Na2CO3 = 2.61 g
volume of solution = 250 mL
molar mass of Na2CO3 = 2 x 23 + 12 + 3x 16
= 106 g/mol
Concentration of Na2CO3 = mass x 1000/( molar mass x volume(mL))
= 2.61 x 1000/(106 x 250)
= 0.0985 M
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