Compute the concentration of cocaine

Assignment Help Chemistry

Reference no: EM13173843

The total mass of cocaine in a 100.00 mL sample of urine was extracted into methylene chloride. After addition of 0.200 g an internal standard, the extract mixture was diluted to exactly 25 mL. Injection of 1.0 ?L of the prepared sample onto a GC column at 225°C yielded peak areas of 680 for cocaine and 606 for the internal standard. Using the calibration data provided below, calculate the concentration of cocaine (mg/mL) in the original urine sample

Reference no: EM13173843

Questions Cloud

State what is the freezing point of a solution : What is the freezing point of a solution prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water?

What is the molarity of phosphoric acid in a solution : what is the molarity of phosphoric acid in a solution that is 84% by mass phosphoric acid and has a density of 1.87 g/ml?

By what factor will the rate constant increase : By what factor (how many times) will the rate constant increase when the temperature is raised from 10°C to 28°C?

Distinguish between low-birthweight-preterm-low birthweight : Distinguish between low-birthweight, preterm, and small-for-gestational age infants. What is the relationship of poverty to low birthweight?

Compute the concentration of cocaine : Using the calibration data provided below, calculate the concentration of cocaine (mg/mL) in the original urine sample.

What is the maximum amount of co2 that can be produced : When 85.0 g of CH4 are mixed with 160 g of O2 what is the maximum amount of CO2 that can be produced?

Optimum order quantity and corresponding relevant cost : The total relevant cost of holding inventory in a plant for purchased materials is given, TRC = (6000/Q)(60) PLUS 0.30(12)(Q/2) PLUS 6000(12) WHERE Q IS THE ECONOMIC ORDER QUANTITY.

Determine the empirical and molecular formula of compound : The molar mass of the compound is 303.8 g/mol and the molar masses of C, O, and Ag are 12.-1 g/mol, 16.00 g/mol, and 107.9 g/mol, respectively. Determine the empirical and molecular formula of the compound.

Provide an assessment of the draft statement : Cash receipts from customers should improve given anticipated improvements in economic conditions. Company has also committed extra resources to the credit function, in order to speed up collection of overdue debts

User Account

All Pages