Ask a New Question

2 moles of helium (He)

I am stuck on this now....As a birthday balloon is filled with helium, the amount of helium increases from 0.5 moles of helium
1. 1 answer
2. asked by JD
3. 1,135 views
Adding helium to a balloon increased its volume from 360.9 mL to 3.532 L. If the final number of moles of helium in the balloon
1. 1 answer
2. asked by wendy
3. 1,965 views
Three gases, xenon, helium, and hydrogen are confined in a 10.0 L vessel at a pressure of 7.0 atm. Intially the vessel contains
1. 1 answer
2. asked by Paxton
3. 1,224 views
A mole of helium gas contains 6.02x10^23 helium atoms. How many helium atoms are there in a micromole of helium? How many moles
1. 1 answer
2. asked by sara
3. 2,699 views
A helium balloon contains 0.54g of helium.Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it
1. 2 answers
2. asked by Mira
3. 2,551 views
A helium ballon contains 0.32g of helium. Given the molecular weight of helium is 4. How many moles of helium does it contain.
1. 2 answers
2. asked by Anonymous
3. 1,393 views
A helium balloon contains 0.30g of helium.Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it
1. 1 answer
2. asked by bob
3. 1,036 views
A helium balloon contains 0.50 g of helium.Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it
1. 1 answer
2. asked by Anonymous
3. 5,038 views
The equation of the reaction between 2 moles of proton and 2 moles of neutron producing Helium particles is a practical
1. 0 answers
2. asked by Olushola
3. 545 views
the mole fraction of helium in a gas mixture is 0.16 if the total number of moles of gas in the mixture is 5.2 how many moles of
1. 1 answer
2. 34 views