Suppose you burn a substance in the air (reactants) and produce smoke and ash (products). the conservation laws state that the mass of your reactants should be the mass of your products
Solved
Show answers
More tips
- S Science and Technology How to Make a Homemade Smoker: The Ultimate Guide...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Chemistry
- C Chemistry Write a full balanced equation for titration curve for 10 ml of hno3 with .200 m naoh...
- C Chemistry Why must water be heated at about 80 degrees during esterification...
- C Chemistry Nonmetals make up the largest grouping of elements on the periodic table. answer true or false...
- C Chemistry Which list consists of types of chemical formulas? (1) atoms, ions, molecules (2) metals, nonmetals, metalloids (3) empirical, molecular, structural (4) synthesis, decomposition,...
- C Chemistry How many moles of sodium nitrate are produced from 4 moles of sodium iodide?...
- C Chemistry Joan and mike s teacher show them a picture of an atom and ask them to identify it using the periodic table. joan says the atom is carbon, but mike says it is lithium....
- C Chemistry A group of students are making a sign that is 3 meters long. If each student works on 20 cm of the sign how many students can work on the sign?...
- E English What can be stated about the conclusion to the first seven years by bernard malamud?...
- M Mathematics What is the measure of angle 1? 70 degrees 105 degrees 75 degrees 100 degrees...
- M Mathematics Factor the expression x2 + 4x − 12....
Ответ:
The balanced equation is
4Fe(s) + 3O2(g) ---> 2Fe2O3(s)
here four moles of Fe will react with O2 to give 2 moles of Fe2O3
mass of Fe reacted = 33.4 grams
moles of Fe reacted = mass of Fe / atomic mass of Fe
moles of Fe reacted = 33.4 / 55.8 = 0.599 moles
moles of Fe2O3 formed = 0.5 X 0.599 = 0.2995 moles
so mass of Fe2O3 formed = moles X molar mass = 0.2995 X 159.69 = 47.83 g