Question

How many oxygen atoms are in 22.1g Al2O3

How many oxygen atoms are in 22.1g Al2O3

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

1 mole Al2O3 = 3 mol O-atoms

so that, no of mole of Al2O3 = w/mwt = 22.1/102 = 0.217 mol

                    no of O-atoms = 0.217*3*6.023*10^23   ( 1mol = 6.023*10^23 atoms)

                                            = 3.921*10^23 atoms

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
How many oxygen atoms are in 4.5g of H2SO4
How many oxygen atoms are in 4.5g of H2SO4
How many atoms of Oxygen are in 1.4 moles of NO2
How many atoms of Oxygen are in 1.4 moles of NO2
How many atoms of Oxygen are in a single unit (molecule) of ? The number of...
How many atoms of Oxygen are in a single unit (molecule) of ? The number of molecules present in 1 mole of a compound is? The "% by mass" of P in P_4O_6 is? What is the mass of 4.22 mole of Cl2 ? How many Cl2 molecules are in of 4.22 mole of Cl2 ?
How many neutrons are present in 0.760 moles of 18O atoms (the oxygen 18 isotope)? Report...
How many neutrons are present in 0.760 moles of 18O atoms (the oxygen 18 isotope)? Report your answer to 3 significant figures.
Can someone please explain this to me! How many atoms of oxygen are in 5.00 g...
Can someone please explain this to me! How many atoms of oxygen are in 5.00 g of ethanol, C2H6O? A. 6.52 × 1022                           B. 9                                          C. 5.52 × 1024               D. 6.02 × 1023
1) are present in 3.12 moles of carbon monoxide ?   atoms of carbon. 2. How many...
1) are present in 3.12 moles of carbon monoxide ?   atoms of carbon. 2. How many MOLES of oxygen are present in 8.18×1021molecules of carbon monoxide ?   moles of oxygen. 1. How many MOLECULES of phosphorus trichloride are present in 4.17 moles of this compound ?   molecules. 2. How many MOLES of phosphorus trichloride are present in 9.62×1022 molecules of this compound ?   moles. 2) 1. How many ATOMS of carbon are present in 5.72 grams ofcarbon monoxide ? atoms...
A) How many moles of oxygen atoms are in 4.48 moles of magnesium phosphate: Mg3(PO4)2 (Mw....
A) How many moles of oxygen atoms are in 4.48 moles of magnesium phosphate: Mg3(PO4)2 (Mw. 262.87 g/mol)? B) How many moles of hydroxide ion are in 4.58 moles of aluminum hydroxide: Al(OH)3 (Mw. 78.00 g/mol)? C) How many iron ions are in 4.5 moles of iron (III) carbonate: Fe2(CO3)3 (Mw. 291.73 g/mol)?
Assume your "impurity" is oxygen in the form of Al2O3 on the surface of your metal...
Assume your "impurity" is oxygen in the form of Al2O3 on the surface of your metal (Aluminum). Assuming all Al is accounted for (0.056 g), calculate the number of moles of Al2O3 present. Assume 2.7% impurity.
Six grams of carbon (C) and four grams of oxygen (O) contain: a) twice as many...
Six grams of carbon (C) and four grams of oxygen (O) contain: a) twice as many carbon atoms as oxygen atoms. b) 1.5 times as many carbon atoms as oxygen atoms. c) the same number of atoms. d) twice as many oxygen atoms as carbon atoms.
3.If four carbon atoms undergo a chemical reaction with oxygen to form CO2 molecules, how many...
3.If four carbon atoms undergo a chemical reaction with oxygen to form CO2 molecules, how many carbon atoms will be found in the product? a. one b. two c. three d. four 4.Classify the following reaction: FeCl 3 + 3NaOH  Fe(OH) 3 + 3NaCl a. combustion b. synthesis c. decomposition d. single displacement e. double displacement 5.Classify the following reaction: Cl 2 + ZnI 2  ZnCl 2 + I 2 a. combustion b. synthesis c. decomposition d. single...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT