General Chemistry Answers

Calculate the heat of hydrogenation of ethane 𝐶2𝐻4 using the following reactions:

2𝐶 (𝑔𝑟𝑎𝑝ℎ𝑖𝑡𝑒) + 3𝐻2 (𝑔) → 𝐶2𝐻6 (𝑔) ∆𝐻𝑓 = −84.5 𝑘𝐽/𝑚𝑜𝑙

2𝐶(𝑔𝑟𝑎𝑝ℎ𝑖𝑡𝑒) + 2𝐻2 (𝑔) → 𝐶2𝐻4 (𝑔) ∆𝐻𝑓 = 52.3 𝑘𝐽/mol

.Represent in the conventional manner, i.e., anode/cathode, the voltaic cell in which each of the following reactions occur spontaneously

z gram of ammonium sulphate,(NH4)2SO4 has .505x10²² particles.What is the value of z?

When 250cm3 of saturated solution of copper (ii) tetraoxosulphate (vi) at 30°C was evaporated to dry lense 5g of the salt was obtained.What is the solubility of the salt at 30°C

How many ml of water should be added to 375ml of a solution containing 0.5g of benzalkonium chloride to make 1 :5000 solution?

How will you describe the forces of attraction between solid solute and liquid solvent?

How will you describe the forces of attraction between solid solute and liquid solvent?

among Pb^(2+), Ge^(2+), Sn^(2+) and Si^(2+) whuch is most stable

A sample of oxygen gas occupies a volume of 250. Ml at 740. Torr pressure. What volume will it occupy at 800. Torr pressure?

A gas is heated from 263.0 K to 298.0 K and the volume is increased from 24.0 liters to 35.0 liters by moving a large piston within a cylinder. If the original pressure were 1.00 atm, what would the final pressure be?