Question

1) Calculate the ∆H value for the following unbalanced reaction using equations 1 and 2.    C (s) + H ₂ O (g) → CO ₂ (g) + H ₂ (g)

Equation 1: C _(s) + O _2(g) → CO _{2 (g)}                 ∆H = –304 kJ

Equation 2: H _{2 (g)} + O ₂ (g) → H ₂ O _(g) ∆H = –242 kJ

2) Given 0.150 L of nitrous oxide at 25 °C and 749 mmHg pressure, calculate the number of N 2 O molecules

3) If 45.5 mL of 0.150 M sodium sulfate solution reacts with 50.0 mL of 0.175 M aqueous barium nitrate

4) What is absolute zero? How do gas particles behave at this temperature? List any four ideal gas

5) What is the [OH - ] of a solution that has a [H O + ] of 5.0 × 10 -2 M? Is this solution acidic, basic or neutral?

Answer 1

3) i think the  Question is incomplete.

4) Absolute temperature is the lowest possible thermodynamic temperature. Absolute zero temperature is 0K or -273.150 c.  

At this temperature, the volume of ideal gas approaches zero. The gas will be no longer gas, but solid.

Examples of ideal gases are :

ideal gas is an ideal concept. Gases like hydrogen, nitrogen, oxygen and CO2  can be considered as ideal gas under certain conditions.

Remaining answers are attached below.