Determine the oxidizing agent in the following reaction: Ni Ag CIO_4 Ag+ Ni^2+ W

Question

Determine the oxidizing agent in the following reaction: Ni Ag CIO_4 Ag+ Ni^2+ What volume of 0.10 M of sulfuric acid H_2 SO_4 is required to completely react with 20.0 ml of 0.2 M NaOH solution? 20.0 mL 40.0 mL 10.0 mL 30.0 mL 80.0 mL Consider 2 balloons each containing 1 mole of O_2 and 1 mole of H_2 gas respectively. Which of the following statements about the gases is FALSE? The product PV is the same at STP the average kinetic energy of O_2 and H_2 molecules is the same at STP the gases obey the ideal gas law at all temperatures and pressures At constant pressure, changing the temperature will change the volume. The gases occupy the same volume at STP What volume of oxygen at 273K and 0.90 atm is required to react completely with 0.47 g of Cu for the reaction: 4Cu(s) + 02(g) rightarrow 2 Cu_2O(s) 0.02 L. 0.05 L 0.29 L 3.5 L 0.18 L The density of a homo nuclear diatomic gas is 1.24 g/L at STP (1 atm and 273 KV the identity of the gas is: (Useful information: Density = mass/Volume and PV = nRT) O_2 N_2 CO C_2H_4 CO_2

Explanation / Answer

7. Oxidizing agent is the one which itself gets reduced in the process

thus the oxidizing agent here would be,

D. Ag+

8. Volume of H2SO4 required = 0.2 M x 20 ml/2 x 0.1 M

                                                = 20 ml

A. 20 ml

9. False statement

C. The gases obey ideal gas law at all temperatures and pressures

No the gases do not obey ideal gas law at higher temperature and pressures.

10. Volume of O2 needed = nRT/P

= 0.47 x0.08205 x 273/63.546 x 0.90

= 0.18 L

E. 0.18 L

11. Density of gas = 1.24 g/L

So the identity of gas would be,

B. N2        

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