Mass of 25percent (w/w) HCl solution required to decompose 50g CaCO3 i

1.	Mass of 25percent (w/w) HCl solution required to decompose 50g CaCO3 is
Answer» ANSWER: Explanation first find the molar mass of calcium carbonate Mm[CACO3]=40+12+16x3=100g then NUMBER of moles n=m÷mm n=50\100=0.5mol mole ratio HCL:CaCO3 1:1 n:0.5 nHCL=0.5 FIND THE MOLAR MASS OF HCL ACID AFTER U CALCULATE THE MASS n=m/mm the multply the mass by 25percent

Mass of 25percent (w/w) HCl solution required to decompose 50g CaCO3 is

Answer»

Explanation

first find the molar mass of calcium carbonate

Mm[CACO3]=40+12+16x3=100g

then NUMBER of moles

n=m÷mm

n=50\100=0.5mol

mole ratio

HCL:CaCO3

1:1

n:0.5

nHCL=0.5

FIND THE MOLAR MASS OF HCL ACID

AFTER U CALCULATE THE MASS

n=m/mm

the multply the mass by 25percent