Other Chemistry Answers

Grasping the Concept

Use the following thermochemical equations as needed to find the heat of formation of diamond:

C(diamond) + O2(g) → CO2(g) ΔHo = -395.3 KJ

2 CO2(g) → 2 CO(g) + O2(g) ΔHo= 566.0 KJ

C(graphite) + O2(g) → CO2(g) ΔHo = -395.3 KJ

2 CO(g) → C(graphite) + CO2(g) ΔHo= -172.5 KJ

Calculate the enthalpy change when 14.5 g of water vapor condenses to liquid water.

25g of AgNo3

what volume of oxygen will be required to oxidise 1.4 cubic dm of carbon(iv)oxide and what is the volume of the product ,all volumes measured at s.t.p

State, in terms of the concentration of ions, why the 6.0 M HC(ag) is a better

conductor of electricity than the 0.1 M HCI(aq).

The nomenclature of compound elements?

The structure of CCl₃CHO-->2,2,2,trichoroethanal?

A is a solution of hydrochloric acid containing 3.60g of Hcl in 1dm³ of solution. B is a solution of impure of sodium carbonate.25cm³ of B require 22.7cm³ of A for complete reaction.Given that 5.00g of impure B was dissolved in 1dm³ solution,what is the percentage by mass of pure sodium carbonate in the impure sample​

A mixture is first made of 150 cm³ of a 0.200 mol.dm^-3 solution of silver nitrate and ycm3 of a 2.50 mol.dm^-3 solution of potassium cyanide. Thereafter, 100 cm³ of a 0.120 mol.dm^-3 solution of potassium chloride is added to this mixture and the resulting solution is diluted to 2.00 dm³ . Calculate the value of y that will just prevent the precipitation of silver chloride.