Web Analytics
AmandaPanda11702
Answered

An aqueous solution has a mass of 490 grams containing 8.5 × 10-3 gram of calcium ions. The concentration of calcium ions in this solution is

  1. 4.3 ppm
  2. 8.5 ppm
  3. 17 ppm
  4. 34 ppm

Verified Answer :

taskmasters

to solve the concentration, it is equal to the mass of the calcium ions divided by the total mass of the solution.
C = mass of ions / mass solution
C = ( 8.5 x 10 ^-3 g ) / 490 g
C = 1.7 x 10^-5
since the choices are in ppm, multiply it by 10^6
C = (1.7 x 10^-5 ) 10^6
C = 17 ppm

Answer:

17 ppm

Explanation:

Related Questions