You had a 1,000 mg/dL solution of glucose. You took 1 mL of that and diluted it to 5 mL. Then you took 4 mL of that and added it to 12 mL of water. What is the final concentration of your glucose solution? Answer= 50 mg/dL glucose: Can someone please show me how to arrive at this answer? Solution 100 ml === 1dL 100ml ===== 1000mg of glucose 1 ml = 10mg of glucose 1ml ( 10mg glucose) + 4 ml water added and made into ==> 5 ml solution====> contain 10mg Glucose 5ml===== 10mg glucose 4ml contain =====> 8 mg of gliucose 4 ml ( 8mg of Glucose) + 12ml water.....==> 16ml contain 8mg 16ml = 0.16dL Final conc. = 8mg / .16dL = 50 mg /dL .

1. You had a 1,000 mg/dL solution of glucose. You took 1 mL of that and diluted it to 5 mL. Then
you took 4 mL of that and added it to 12 mL of water. What is the final concentration of your
glucose solution?
Answer= 50 mg/dL glucose: Can someone please show me how to arrive at this answer?
Solution
100 ml === 1dL
100ml ===== 1000mg of glucose
1 ml = 10mg of glucose
1ml ( 10mg glucose) + 4 ml water added and made into ==> 5 ml solution====> contain 10mg
Glucose
5ml===== 10mg glucose
4ml contain =====> 8 mg of gliucose
4 ml ( 8mg of Glucose) + 12ml water.....==> 16ml contain 8mg
16ml = 0.16dL
Final conc. = 8mg / .16dL = 50 mg /dL