When heated, KClO3 decomposes into KCl and O2. 2 KClO3
-------------------> 2 KCl + 3O2 If this reaction produced 70.5
g of KCl, how much O2 was produced ( in grams)?
1. KClO3 decomposes according to the
reaction:
2KClO3 → 2KCl + 3O2
If the rate of decomposition of
potassium chlorate at a certain time is determined to be 2.4 x
10-2mol
s-1, what is the
rate of formation of KCl at the same time?
2. The rate law for a reaction involving only A and B is
1st order in A and 4th order in B,
respectively. If the concentration of A is increased by a factor of
4 and...
If 100 grams of KClO3 are heated to form KCl and O2 according to
the equation KClO3 → KCl + O2 a. How many moles of KClO3 reacted?
b. How many moles of KCl are formed? c. How many grams of KCl are
formed? d. how many moles of O2 are formed? e. How many grams of O2
are formed?
7. You are given 2.263 g of a mixture of KClO3 and KCl. When
heated, the KClO3 decomposes to KCl and O2, 2 KClO3 (s) → 2 KCl (s)
+ 3 O2 (g), and 632 mL of O2 is collected over water at 20 °C. The
total pressure of the gases in the collection flask is 736 torr.
What is the weight percentage of KClO3 in the sample? The formula
weight of KClO3 is 122.55 g/mol. The vapor pressure of...
For the following chemical reaction:
KClO3(s) --------->
KCl(s) +
O2(g)
a. Balance the reaction:
b. Name the type of reaction:
c. Determine the number of moles of KCl that will form from 4.25
moles of KClO3.
d. Determine the number of moles of O2 that will form
from 4.25 moles of KClO3.
e. Determine the number of moles of KClO3 necessary
to form 10.0g of O2.
A mixture of KClO3 and KCl with a mass of 0.950 g was
heated to produce O2. After heating, the mass of residue
was 0.660 g. Assuming all the KClO3 decomposed to KCl
and O2, calculate the mass percent of KClO3
in the original mixture.
% KClO3
A mixture of KClO3 and KCl with a mass of 0.950 g was heated to
produce O2. After heating, the mass of residue was 0.840 g.
Assuming all the KClO3 decomposed to KCl and O2, calculate the mass
percent KClO3 in the original mixture.
For the following reaction KClO3---->KCl+1/2 O2 assign
oxidation states to each element on each side of the
equation...reactants and products. Which element is oxidized? Which
element is reduced?
Reactants for K, Cl, and O please.
For the reaction
2KClO3(s)→2KCl(s)+3O2(g)
calculate how many grams of oxygen form when each quantity of
reactant completely reacts.
a. 2.91 gKClO3
b. 0.400 gKClO3
c. 87.5 kgKClO3
d. 25.9 mgKClO3