# chemistry

Calculate the number of atoms for the following:

2 mol Na atoms

I got 1.2*10^24

Thank you!

1. 👍 0
2. 👎 0
3. 👁 67

## Similar Questions

1. ### chemistry

calculate number of atoms in 4.67 mol of Ca(NO3)2 I got: 2.81 X 10^24 C atoms or should it be 28.11 x 10^23 C atoms? 5.62 X 10^24 N atoms or should it be 9.34 x 10^23 N atoms? 1.69 x 10^25 O atoms....but are you allowed to do ^25

asked by Sarah on May 23, 2008
2. ### Chemistry

UMM.. I keep coming up with the wrong answer? How do I calculate this? 1. Calculate the number of Li atoms in 9.9 moles of Li. Express your answer using two significant figures. 2. Calculate the number of CO2 molecules in

asked by Jennie on February 27, 2015
3. ### General Chemistry

Calculate the number of C atoms, H atoms, and O atoms, in 1.50 grams of glucose (C6H1206). I do not understand how to calculate this. Please explain and post the correct answers.

asked by Kendra on May 17, 2010
4. ### chemistry

I'm having a little trouble doing a worksheet. 1.25 moles of KBr contains how many Br atoms? How do I find the number of atoms for one of them? Also, I'm not sure how to solve: Calculate the number of atoms in CO2. Thanks.

asked by Jan on January 19, 2010
5. ### chemistry ugg!

what is the age of a rock whose Argon 40 / Potassium 40 ratio is 1.55? The half life of Potassium 40 is 1.28 x 10^9 years I am confused on this question theres no examples in my book but i have to know it can someone explain to me

asked by Andrew on June 15, 2006
6. ### science

How are all atoms of iron different from the atoms of all other elements? A.number of neutrons B.charge on the atoms C.mass number D.number of protons I guessed. I knew the answer. 123456789101112131415161718192021

asked by victoria on January 24, 2014
7. ### chemistry stoichiometry

My chem teacher gave us this problem Twelve-gauge copper wire,like the kind commonly used in residential electrical systems, is roughly cylindrical and has a diameter of approximately .1040in. Copper's density is 8.92g/cubic cm

asked by Julissa on September 9, 2007
8. ### General Chemistry

Calculate the number of C atoms, H atoms, and O atoms, in 1.50 grams of glucose (C6H1206). Please explain and exact example of how to do this and what the correct answers are.

asked by Kendra on May 17, 2010
9. ### Chem

How many chlorine atoms are in 5.0 g of C2H3Cl3O2? What mass of C2H3Cl3O2 would contain 1.0g Cl? There are 6.02 x 10^23 atoms in a mole of anything. Calculate the molar mass of your compound, that mass will contain 6.02 x 10^23

asked by Min on December 9, 2006
10. ### chemistry

How do I calculate the number of atoms in a compound (not an element)? I have the mass of the amount of substance, and the molar masses. How do I do this? Is this the same as calculating the number of molecules/ formula units?

asked by pinkmercy on November 19, 2012

More Similar Questions