Identify the substance being oxidized

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1) A sample of helium gas initially at 10.2°C, 601 torr and 1.14 L was heated to 92.8°C while the volume expanded to 4.94 L. What is the final pressure in atm?

2) How much water, in mL, would need to be evaporated to 0.271 M solution of HCl if you began with 169 mL of a 0.910 M HCl solution?

3) Identify the substance being oxidized in the following reaction: CH4 + O2 --> CO2 + 2H2O.

4) First-generation automobile airbags were inflated by the decomposition of sodium azide:

2 NaN3 (s) → 2 Na(s) + 3 N2(g)

What mass of sodium azide would be required to inflate a 5.7 L airbag to a pressure of 1.26 atm at 17??

5) For each of the following acids, write the formula of the conjugate base.

a) HCO3-

b) CH3NH3+

c) HNO2

Reference no: EM132543019

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