top of page

A solution is prepared using 0.125 g of glucose, C6H12O6, in enough water to make250. g of total so

August 2018 NY Regents Chemistry Exam


40 A solution is prepared using 0.125 g of glucose, C6H12O6, in enough water to make 250. g of total solution. The concentration of this solution, expressed in parts per million, is

(1) 5.00 × 10^1 ppm

(2) 5.00 × 10^2 ppm

(3) 5.00 × 10^3 ppm

(4) 5.00 × 10^4 ppm


Solution: Table T on the Reference table gives a formula for calculating concentration expressed in parts per million. Parts per million = (mass of solute/ mass of solution)*1000000

Parts per million = (0.125 g/ 250. g )*1000000 = 500

Answer:2


Prepare for the Chemistry Regents Exam: HERE

Contact us for chemistry tutoring: HERE

0 comments

Comments


Ready For Chemistry Tutoring?

I tutor all levels of chemistry including general and organic chemistry.

Click To Learn More

bottom of page