The major ionic species present in aqueous solution of sodium sulfate is
2 Na+ and SO4^2-
<u><em>explanation</em></u>
When electrolyte dissolve in water they dissociate into ions.
There are two type of electrolyte that is strong and weak electrolyte.
Sodium sulfate is a strong electrolyte and therefore it dissociate completely into ions as below
Na2So4 → 2 Na+ (aq) + So4^2- (aq)
Answer:
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Explanation:
various occupational risk factors and workplace hazards associated with working or living in a particular job environment according to ergonomics studies includes temperature and humidity, notice and vibration, illumination, lightning, noice
Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column of the periodic .
Symbol: Mg
Atomic mass: 24.305 u ± 0.0006 u
Electron configuration: [Ne] 3s2
Atomic number: 12
Melting point: 1,202°F (650°C)
Discovered: 1755
Discoverer: Joseph Black
1) Balanced chemical reaction
2 KCl O3 ---> 2 KCl + 3 O2
2) stoichiometry
2 mol of KCl O3 / 3 mol O2
atomic and molecular masses
K: 39 g/mol
Cl: 35.5 g/mol
O: 16 g/mol
KClO3: 39 + 35.5 + 3*16 = 122.5 g/mol
O2: 2*16 = 32 g/mol
ratio of masses: 2* 122.5 g of K Cl O3 / 3* 32 g O2
4) final calculations
3.450 g KClO3 * 96 g O2 / 245 g KClO3 = 1.352 g O2
5) Answer: 1.352 gO2