number of moles = mass of the element/molar mass of the element
to convert an element to moles you need to setup and equation, for our example we will be using 5g of O2 or oxygen. You need to know what O2's molar mass is as well, it is 32g. So the equation would be 5g of O2 / 32 = .16 moles of O2. So to convert moles to grams all you do is multiply the moles given by the molar mass of the element/compound and you have your grams Hoped this helped : )
I would need to know what kind of gas you're talking about. Once you know that, you can use the periodic table to do a mass-mole conversion to get the number of moles. The number moles won't change as temperature changes, but its volume would change, as per the gas laws.
N2 + 3H2 -> 2NH3 3 moles hydrogen gas. You should know that because of the formula of ammonia.
Multiply the number of moles by Avogadro's number (6.022 x 1023).CONVERSION FACTORNumber of moles X Avogadro's Number////////////////////////////// 1 mole
first you need to know the number of liters and moles and the equation. you do someting then multiply the liters times the moles. first you need to know the number of liters and moles and the equation. you do someting then multiply the liters times the moles.
to convert an element to moles you need to setup and equation, for our example we will be using 5g of O2 or oxygen. You need to know what O2's molar mass is as well, it is 32g. So the equation would be 5g of O2 / 32 = .16 moles of O2. So to convert moles to grams all you do is multiply the moles given by the molar mass of the element/compound and you have your grams Hoped this helped : )
One still has to know the pressure and the amount(moles) of that gas, not which gas is concerned.
This reaction?? 2H2O -> 2H2 + O2 this would be one to one and you would get; 174.82 moles of water vapor Without an equation I do not really know what you mean.
I would need to know what kind of gas you're talking about. Once you know that, you can use the periodic table to do a mass-mole conversion to get the number of moles. The number moles won't change as temperature changes, but its volume would change, as per the gas laws.
This cannot be answered because it is essential to know what element you're dealing with here. 8.2 grams of iron will contain considerably less atoms than 8.2 of hydrogen. Therefore, the number of moles in 8.2 grams of iron will differ from the number of moles in 8.2 grams of hydrogen.
You would need to know the chemiscal formal for methane, X the numbers of mole.
You need to know the moles of solute and the VOLUME of SOLUTION.
I don't know WHY, per say, but I know it would be metal. toodles.
N2 + 3H2 -> 2NH3 3 moles hydrogen gas. You should know that because of the formula of ammonia.
To find the number of moles in I2, we have to know the atomic weight of iodine (which my periodic table tells me is 127). But iodine is a diatomic element, existing in molecules of 2 iodine atoms bound together (I2). So the molecular weight of I2 is 2 x 127 = 254g/mole. Moles = mass/MW, so moles = 450g/(254g/mole). The "grams" cancel out and the answer is 1.77 moles.
Multiply the number of moles by Avogadro's number (6.022 x 1023).CONVERSION FACTORNumber of moles X Avogadro's Number////////////////////////////// 1 mole
first you need to know the number of liters and moles and the equation. you do someting then multiply the liters times the moles. first you need to know the number of liters and moles and the equation. you do someting then multiply the liters times the moles.