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4 g of Helium = 1 mole.So, 56 g of helium = 14 moles
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How many moles of oxygen gas are there in 180 L of oxygen at STP?
If the density of oxygen atSTP is 1,429 g/L the mass of 180 L is 257,22 g.If the mole of oxygen (O2) is 15,999 g the number of moles is 16,077.
If a large balloon contains 224 liters of gas at STP then there is 100 mole of gas in the balloon How many moles of gas are in a balloon that is 560 liters at STP?
0.250 mol
How many moles are present in 8.4 liters of nitrous oxide at STP?
8,4 liters of nitrous oxide at STP contain 2,65 moles.
How many moles are contained in 16.8 L of Xe gas at STP?
16,8 L of Xe gas at STP is equivalent to 0,754 moles.
How many moles of methane are presentin 5.6L of the gas at stp?
0.25 moles
Calculate the number of moles in 15 liters of oxygen at STP?
0.67 mol
How many moles of oxygen gas are there in 180 L of oxygen at STP?
If the density of oxygen atSTP is 1,429 g/L the mass of 180 L is 257,22 g.If the mole of oxygen (O2) is 15,999 g the number of moles is 16,077.
How many moles are in 68.5 liters of oxygen gas at STP?
3.058
If a large balloon contains 224 liters of gas at STP then there is 100 mole of gas in the balloon How many moles of gas are in a balloon that is 560 liters at STP?
0.250 mol
What volume occupied by 1.50 moles of CH4 at STP is?
The amount of oxygen is 0,067 moles.
What is the number of moles of gas in 30 L of oxygen at STP?
Ideal gas law.PV = nRT(1.00 atmosphere)(30 L) = n(0.08206 L*atm/mol*K)(298.15 K)n(moles O2) = 30/24.466= 1.2 moles oxygen gas================
How many moles of o2 molecules are there in 50dm3 of o2 gas at STP?
A cubic decimeter is a liter, so we're talking 50L of oxygen gas at STP. 1mol of any gas at STP occupies 22.4L of space, so 50/22.4 = about 2.2mol of oxygen.
How many moles of oxygen in 10dm3?
No. of moles = mass/relitive molecular mass in this case = 10/16 = 0.625 so that's 0.625 of a mole and a mole of anything contains 6.022 x 1023 atoms = 3.76 x 1023 atoms in 10g of oxygen.
How many liters of oxygen are needed to exactly react with 27.8 g of methane at STP?
1) First find the number of moles of methane in 27.8 g using the molar mass.See the Related Question to the left of this answer "How do you convert from grams to moles and also from moles to grams?" to do that.2) Then write the balanced reaction. Methane (CH4) reacts with oxygen (O2) to form carbon dioxide (CO2) and water (H2O). See the related question "How do you balance a chemical reaction?" to do that.3) That will tell you the ratio of moles of methane to moles of oxygen (it will be 2 to 1). So from Part 1, multiply the number of moles of methane by 2 to get moles of oxygen. Then, use the Ideal Gas Law to find out how many liters that will take up at STP. Use the Related Question link "How do you solve Ideal Gas Law problems?" to do that.
How many moles are present in 8.4 liters of nitrous oxide at STP?
8,4 liters of nitrous oxide at STP contain 2,65 moles.
How many moles are contained in 16.8 L of Xe gas at STP?
16,8 L of Xe gas at STP is equivalent to 0,754 moles.
How do you calculate the number of liters of 3.30 moles of helium at stp?
1 mole occupies 22.414 liters So, 3.30 moles will occupy 73.966 liters.
