0 reads0 ratings0 helpful
A solution contains 50 mg solute and the mass of solution is 2 kg. What is the ppm?किसी विलयन में विलेय की मात्रा 50 mg है और विलयन का द्रव्यमान 2 kg है। ppm कितना होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 25 ppm25 ppm
For mass-based concentration, parts per million is calculated as ppm = (mass of solute ÷ mass of solution) × 1,000,000. Convert the solution mass to the same unit: 2 kg = 2,000,000 mg. Therefore, ppm = (50 ÷ 2,000,000) × 1,000,000 = 25 ppm. Option A is correct; using 2 instead of 2,000,000 would mix units and give an incorrect result.द्रव्यमान-आधारित सांद्रता के लिए ppm = (विलेय का द्रव्यमान ÷ विलयन का द्रव्यमान) × 10,00,000 होता है। पहले इकाइयाँ समान करें: 2 kg = 20,00,000 mg। अतः ppm = (50 ÷ 20,00,000) × 10,00,000 = 25 ppm। इसलिए विकल्प A सही है। 50 ppm या 100 ppm चुनने पर रूपांतरण अथवा अनुपात में गलती होगी।
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
