Inorganic Chemistry Answers

At one point during the synthesis of nirosyl bromide, the following concentration were measured [NO] = 0.050 M. [Br2] = 0.100 M, and [NOBr] = 0.010 M. Calculate for the value of Q during this point of the synthesis.

Hydrogen Chloride reacts with active metals such as zinc to form hydrogen gas and a Chloride for the metal

When 10.11g of hydrochloric acid reacts with 10.3 g of aluminum hydroxide,

a. Identify the limiting reagent
b. Find the moles of the salt produced
c. Find the moles of the excess reactant used up in the reaction
d. Find the moles of the excess reactant leftover after the reaction is complete
e. Find the mass of the excess reactant leftover after the reaction is complete
f. When this reaction was completed in the lab, the percentage yield (of the salt produced) was 72.5%. What is the actual yield?

When O2 reacts with H2S the products are SO2 and H2O.
Mixture Y contains an equal number of the two molecules shown, and no other molecules.
16. 18. 1. 32. 1
O= O. H---. S---H
1. 16. 1

Which statements about Y are correct?
1 The average Mr in Y is 34.
2 If some oxygen molecules are removed from Y, the average Mr of the mixture remains the
same.
3 When mixture Y is ignited, some H2S remains unreacted.

X is either chlorine or an oxide of chlorine.
X reacts with water, under suitable conditions, to form the two acids HCl and HClO3 in the mole
ratio of 1 (HCl): 5 (HClO3).
What could be X?
A Cl 2 B Cl 2O C ClO2 D Cl 2O7

Calculate the energy required to excite a particle in a cubic box of edge length 1Å from its ground state to its first excited state.

If 10.45 g of aluminum are reacted with 66.55 g of copper (II) sulphate, aluminum sulphate and copper are formed.
a.Which reactant is in excess?
b. Calculate the mass of copper formed.

Predict the shape of brf4^-1 using VSEPR theory

3. Given the following thermochemical equations,
C2H2(g) + 5/2 O2(g) → 2CO2(g) + H2O(l) ∆H = -1299.5 KJ
C(s) + O2(g) → CO2(g) ∆H = -393.5 KJ
H2(g) + ½ O2(g) → H2O(l) ∆H = -285.8 KJ
Calculate ∆H for the decomposition of one mole of acetylene, C2H2(g), to its elements in their stable state at 25oC and 1 atm.