Lab Review

Question 0

test for presence of glucose

Answer 0

( benedict’s solution plus heat)

one glucose one water, add benedict and heat

Question 1

test for presence of starch

Answer 1

( indicator lugols iodine)

starch and water mix, and water, add lugols observe colors

Question 2

test for presence of salt

Answer 2

(indicator silver nitrate solution)

salt and water, add silver nitrate and shake

Question 3

test for presence of protein

Answer 3

( indicator: biuret solution )

protein and water, shake

Question 4

testing samples of unknowns

Answer 4

unknown in four test tubes, test for starch in first tube, glucose in second tube, protein in third tube, and salt in fourth tube.