Examlex
In a metallurgical process the mineral pyrite,FeS2,is roasted in air:
FeS2 + O2 Fe2O3 + SO2
The SO2 is then converted into H2SO4 in the following reactions:
2SO2 + O2 2SO3
SO3 + H2SO4 H2S2O7
H2S2O7 + H2O 2H2SO4
Assuming the mineral is 24.0% FeS2 and the remainder is inert,what mass of H2SO4 is produced if 155 g of the mineral is used?
Q13: Table sugar is a disaccharide formed from<br>A)alpha-D-glucose
Q19: Identify the secondary amine.<br>A)CH<sub>3</sub>NH<sub>2</sub><br>B)(CH<sub>3</sub>)<sub>2</sub>NH<br>C) <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6423/.jpg" alt="Identify
Q33: Which of the following would be the
Q46: For which gas do the molecules have
Q59: A 5.95-g sample of AgNO<sub>3</sub> is reacted
Q60: [Cr(CN)<sub>4</sub>]<sup>2</sup><sup>-</sup>
Q64: How many of the following statements are
Q71: formation of propyl propanoate
Q89: Name the following: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6423/.jpg" alt="Name the
Q100: Larger first ionization energy,Na or Rb