Empirical formula of magnesium oxide
Solved
Show answers
More tips
- F Family and Home Is It Worth Spoiling a Child?...
- S Society and Politics Will Japan become Russia s Military Enemy?...
- P Philosophy Is Everything We Strive for Eventually Achieved and Destroyed?...
- S Society and Politics Understanding Politics and Its Role in the Development of Civilization...
- P Philosophy Why Did God Create Man and Place Him in Obscurity?...
- S Society and Politics Skoptsy: Who They Are and How They Perform Castration?...
- O Other Childhood Fears: What Many of Us Experienced...
- P Philosophy What is Something for you?...
- H Health and Medicine Why Do Humans Have One Heart?...
- P Philosophy Unbelievable stories of encounters with otherworldly forces...
Answers on questions: Chemistry
- C Chemistry HELP 15 POINTS explain the five functions of the skeletal system and argue why it is important to keep it functioning optimally....
- C Chemistry Gallium has two naturally occuring isotopes with mass numbers 69 and 71 respectively.What is th3 percentage abunfance of both isotopes if their RAM is 70.59...
- C Chemistry Muddy water is an example of mixtures...
- C Chemistry Help me in my hw ,What is Angle of declination define it good day...
- C Chemistry What is the independent variable in pedros experiment...
- C Chemistry Phospholipid molecules in a membrane are arranged with their on the exterior...
- C Chemistry List the substances A-E in order from most dense to least dense based on the facts provided. Substance A: 8,2 g/cm! Substance B: 3,5 cm and 30.08 Substance: 10,0 g and 40...
- C Chemistry What does Molecular mean in a simple answer?...
- C Chemistry 0.2 mol of hydrocarbons undergo complete combustion to give 35.2 of carbon dioxide and 14.4g of water as the only product. What is the molecular formula of hydrocarbon...
- C Chemistry Why is water considered a pure substance but orange juice a compound?...
Ответ:
In order to prove this you need to calculate how many moles of magnesium and how many moles of oxygen there are and how it all works together. A very common example of proving it is using 0.297 g of magnesium and getting 0.493 g of the oxide after a reaction.
Mass of Mg = 0.297
Mass of MagnesiumOxide = Mass of Mg + Mass of O
0.493 g = 0.297 g + Mass of O
Mass of O = (0.493 - 0.297)g = 0.196g
Moles of Mg = 0.297 g Mg x 1 mol Mg/24.3g Mg = 0.01222 mol Mg
Moles of O = 9.196 g O x 1 mol O/16g O = 0.01225 mol O
Now you divide both the numerator and the denominator by the smaller value and you'll see that the results is MgO
Ответ: