Tasks related to the theme:
1. How much hydrogen do we need to get 18,4 g tungsten from tungsten
oxide WO
3
?
2. Find out the mass (g) of iodine which resulted from reaction of 3,36 l
ozone with potassium iodate solution.
3. In reaction of magnesium with liquefied nitric acid NO is resulted. How
much mole HNO
3
is reacted with 1,5 mole magnesium?
4. How many grams of potassium permanganate is needed to get 5,6 l (n.c.)
chlorine gas in laborotory?
5. If 85,75 g berthollet salt (potassium chlorate) is pulvirized in high
temperature without catalyst ... g potassium chloride is taken.
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