Write the equation and balance it, then follow the instructions on the link I'm giving you. I'll help by giving you the balanced equation.
C12H22O11 + 12O2 ==>12CO2 + 11H2O
This link will work any stoichiometry problem you have.
_____C2H5OH +_____ O2 „_ _____CO2 + _____H2O
Convert 3.09 g PCl5 to molecules
Find the percent by mass of oxygen in CaCO3
You should post separate questions for these, otherwise they sometimes get left behind.
C2H5OH + 3O2 ==> 2CO2 + 3H2O
%oxygen = (mass Oxygen/molar mass CaCO3)*100 = ?
mass oxygen, use atomic mass O or 3*16 = ?
moles PCl5 = grams/molar mass.
Then remember there are 6.022E23 molecules in one (1) mole of anything.
Calculate the mass of 3.53 x 10^12 atoms of gold is it 6.95x10^14?!
Convert 3.09 g PCl5 to molecules im getting two differnt answers when I'm doing this kind of problems I got .015mol than 14.82mol which is correct?
What is the mass of 4.419 mol of potassium nitride?
These are the last questions I will answer to this post. Post a new question if you have one.
moles Au = (3.53E12/6.022E23), then moles x atomic mass Au = grams Au. 6.95E14 is not correct.
For molecules PCl5 you would have done better to show what you did and I could find the error. It's more important to know how to work the problem.
moles = grams/molar mass = 3.09g/208.2 = 0.0148 (you have three places in 3.09 so DON'T round to 0.015) and moles x 6.022E23 = 8.94E21.
grams = moles x molar mass
g = 4.419 x molar mass K3N = ??
Chemistry - 3Cu+8HNO3--> 3Cu(NO3)2+ 2NO+4H2O How many moles of HNO3 are ...
chemistry - Benzene, C6H6, is a known carcinogen that burns in air according to ...
Chemistry - The number of moles of KMnO4 required to react with 5 moles of H2O2 ...
Chemistry - How many moles of K3PO4 are required to react completely with 4.5 ...
chemistry - how many moles of sugar are contained in a 10-lb bag of sugar if ...
chem - Assuming that you have 0.4g of Y(OH)3, calculate the mass of of BaO2 ...
chemistry - CoCl3(aq) + K2S(aq) yield Co2S3(s) + KCl(aq) How many moles of KCl ...
chemistry - how many grams of magnesium are required to react with 2.0 moles of ...
Chemistry - According to the balanced equation 6 moles of carbon dioxide will ...
Chemistry - How many moles of Al(OH) are required to completely react with 2....