Q49.The ppm level of Fโ in a 500 g sample of a tooth paste containing 0.2 g Fโ is (1) 400 (2) 1000 (3) 250 (4) 200
What This Question Tests
This question tests the direct application of the formula for calculating concentration in parts per million (ppm).
Concepts Tested
Formulas Used
ppm = (mass of solute / mass of solution) * 10^6
๐ NCERT Sections This Tests
1.3 โ Define The Following Terms:
Chemistry Class 11 ยท Chapter 1
1.3 Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.
1.28 โ Calculate The Mass Percentage Of Aspirin (C9H8O4) In Acetonitrile (Ch3Cn) When
Chemistry Class 11 ยท Chapter 1
1.28 Calculate the mass percentage of aspirin (C9H8O4) in acetonitrile (CH3CN) when 6.5 g of C9H8O4 is dissolved in 450 g of CH3CN.
1.27 โ If The Solubility Product Of Cus Is 6 ร 10โ16, Calculate The Maximum Molarity Of
Chemistry Class 11 ยท Chapter 1
1.27 If the solubility product of CuS is 6 ร 10โ16, calculate the maximum molarity of CuS in aqueous solution.
๐ Question Details
- Chapter
- Solutions
- Topic
- Concentration terms
- Year
- 2012
- Shift
- 12 May Online
- Q Number
- Q49
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 2: Solutions
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