Inorganic Chemistry Answers

empirical formula of C₄H₈

b)  Answer the following stoichiometry questions by referring to the equation below:

2KClO₃               2KCl + 3 O₂

i.       If 1.50 mol of KClO₃ decomposes, what is the mass of O₂ that will be produced?

ii.      If 80.0 grams of O₂ was produced, how many moles of KClO₃ are decomposed?

iii.    Find the mass of KClO₃ needed if we need to produce 2.75mol of KCl.

what is the percent composition of oxygen in glucose, C₆H₁₂O₆

Suppose we have a 12.2-L sample containing 0.50 mol oxygen gas (O2) at a pressure of 1 atm and a temperature of 25ºC. If all this O2 were converted to ozone (O3) at the same temperature and pressure, what would be the volume of the ozone

A bacteria triples every 15 minutes. If there were originally 45 cultures in the lab, write the exponential function then determine how many cultures there are after 5 hours.

when 2.1g of a mixture Of KCLO3 and NaCl was thermally decomposed the mass of residue obtained was 1.62g. determine the mass of O2 liberated and calculate the mass if NaCl impurity in the original mixture

Copper (II) sulfide reacts with oxygen gas to produce copper (II) oxide and sulfur dioxide. What is the balanced equation? If 100.0 g of copper (II) sulfide and 56.0 g of oxygen are available, what mass of copper (II) oxide is formed? Identify the limiting reactant. Include balanced equation, molar mass values, dimensional analysis, and limiting reactant.

Aluminum reacts with oxygen. What is the balanced equation? If 1.295 g of aluminum reacts with 0.48 g of oxygen, how many grams of aluminum oxide are formed? Identify the limiting reactant. Include balanced equation, molar mass values, dimensional analysis, and limiting reactant.

20cm^3 of ethanoic acid were titrated with 0.100 moldm^-3 NaOH. At the end point of the reaction 21.0cm^3 of alkali were required.

Calculate the pH at Half equivalence I.e. the pH when 10.5cm^3 of the alkali had been added.

Calculate the pH of 0.100moldm^-3 propanoic acid