Atoms and reactions

Easy Medium Hard

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67

Question 11

A mass spectrometer is used to analyse a gaseous sample of a chlorofluorocarbon (CFC) refrigerant. The mass of a single molecule of this CFC is determined to be 1.736 × 10^-22 g.

What is the molecular formula of this CFC?

(Use Avogadro's constant, $\times 10^{23}\text{ mol}^{-1}$ )

$CHF2Cl\text{CHF}_2\text{Cl}$

$CF2Cl2\text{CF}_2\text{Cl}_2$

$CF3Cl\text{CF}_3\text{Cl}$

$CFCl3\text{CFCl}_3$

Atoms and reactions Questions

A Level
Chemistry
Atoms and reactions

A Level
Chemistry OCR A
Question bank