# Science

Calculate the mass of O2 produced of 3.450g potassium chlorate is completely decolmposed by heating in the presence of a catalyst (Magnese dioxide).

1. 👍 0
2. 👎 0
3. 👁 208
1. http://www.jiskha.com/science/chemistry/stoichiometry.html

1. 👍 0
2. 👎 0
posted by TutorCat

## Similar Questions

1. ### chemistry

A crucible containing potassium chlorate has a mass is 24.426 g. The crucible is heated according to the lab procedure for this week's experiment and is found to weigh 23.202 g. Write an equation for the reaction and, assuming

asked by memo on February 13, 2013
2. ### chemistry

A crucible containing potassium chlorate has a mass is 24.426 g. The crucible is heated according to the lab procedure for this week's experiment and is found to weigh 23.642 g. Write an equation for the reaction and, assuming

asked by Mohammed on October 3, 2011
3. ### chemistry

15.0g of potassium trioxocarbonate(v) was crushed as heated with 0.1g of manganese (iv)oxide. 1) write the equation for the reaction. 2) calculate the mass of components produced assuming the reaction was complete. 3) find the

asked by Anonymous on June 16, 2019
4. ### Honors Chemistry (stoichiometry)

Can someone check and make sure I'm doing these problems right? Thanks so much!! 1. N2 + 3H2 ==> 2NH3 : How many moles of hydrogen are needed to completely react with two moles of nitrogen? ==> I got 6 moles. 3. Zn + 2HCl ==>

asked by Emily on November 4, 2009
5. ### Chemistry

Potassium chlorate decomposes according to the following equation: 2KCIO3(s)= 2KCl(s) + 3O2(g) what volume of a gas can be produced by the decomposition of 12.6g of potassium chlorate measured under the following conditions? a) at

asked by Anonymous on June 7, 2018
6. ### Chemistry

Nitrogen can also be produced from sodium metal and potassium nitrate by the reaction: Na(s) +KNO3 (s) --> K2O(s) +Na2O(s) + N2(g) If we generate oxygen by the thermal decomposition of potassium chlorate: 2KClO3(s) --> 2KCl(s)

asked by Ka_Chin on November 8, 2015
7. ### chemistry

potassium chlorate can be thermally decomposed to oxygen and potassium chloride. calculate the mass of potassium chlorate that must be decomposed by heat to produce 10.0L of oxygen gas at 150 degrees celsius and 150 kPa pressure

asked by Max on February 15, 2016
8. ### Chemistry

Potassium chlorate is 75% pure 48 gram of oxygen would be produced from how much potassium chlorate

asked by Prince on June 28, 2018
9. ### Chemistry

Calcium carbonate decomposes on heating producing potassium nitrate and oxygen. Write a balanced equation for this reaction. Heating 100g of pure potasium nitrae what mass of potassium nitrate would be produced?

asked by JOJO on March 21, 2012
10. ### Chemistry

Can you help me with the explaining and identifying below? A found a link in which the lab is similar to what I did in class. Here it is: icn2. umeche. maine. edu /newnav /NewNavigator /Labs /Deter_1493.htm thanks for the help!

asked by Anonymous on July 11, 2008

More Similar Questions