Sucrose (C12H22O11), which is commonly known as table sugar, reacts in dilute ac

Question

Sucrose (C12H22O11), which is commonly known as table sugar, reacts in dilute acid solutions to form two simpler sugars, glucose and fructose, both of which have the formula C6H12O6: At 23 C and in 0.5 MHCl, the following data were obtained for the disappearance of sucrose: Time (min) 0, 39, 80, 140, 210 C12H22O11(M) 0.316, 0.274, 0.238, 0.190, 0.146.

Using this rate constant, calculate the concentration of sucrose at 39, 80, 140, and 210 min if the initial sucrose concentration was 0.316 M and the reaction was first order in sucrose.

Explanation / Answer

Time (min) Concentration

0 0.316

39 0.274

80 0.238

140 0.190

210 0.146

At time =0 , concentration = 0.316 M

So all were given itself in the table we no need to calculate.

From table ,

at 39 min == Conc is 0.274 M

at 80 min == Conc is 0.238 M

at 140 min == Conc is 0.190 M

at 210 min == Conc is 0.146M

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