A few questions...how many grams are in 48.7x10^24? I don't know how to convert atoms to grams. I can do moles to grams or moles to atoms, but not atoms to grams. My other problem is how do you convert moles to moles as in "how many moles of Cu2O are needed to produce 2.3 moles of Oxygen gas?" The answer is two according to my friend, but I want to know how they reached this. Thanks for your help.
Convert the number of atoms to moles by dividing by 6.02x10^23 atoms/mole.
Once you have the number of moles, you multiply by the formula mass ( grams/mole) to get the number of grams.
Would the answer then be 971.57 grams?
To convert atoms to grams, you need to use the concept of molar mass. Molar mass is the mass of one mole of a substance, given in grams/mol.
To convert atoms to grams, you can follow these steps:
1. Determine the number of atoms in the sample. In this case, the number of atoms is given as 48.7 x 10^24.
2. Convert the number of atoms to moles by dividing by Avogadro's number, which is approximately 6.022 x 10^23 atoms/mol.
moles = (number of atoms) / (Avogadro's number)
3. Once you have the number of moles, you can convert it to grams using the molar mass of the substance. The molar mass can be found on the periodic table.
grams = (moles) x (molar mass)
For example, if you want to convert 48.7 x 10^24 atoms to grams of substance X, you need to know the molar mass of substance X. Multiply the number of moles by the molar mass to get the answer in grams.
To convert moles to moles, you need to use the stoichiometry of the balanced chemical equation.
In this case, you are given the balanced chemical equation:
Cu2O + O2 -> 2 CuO
From this equation, you can see that 1 mole of Cu2O reacts with 1 mole of O2 to produce 2 moles of CuO.
So, if you have 2.3 moles of O2, you can use the stoichiometry to determine that 2 moles of Cu2O are needed.
Therefore, the answer is 2 moles of Cu2O, as your friend mentioned.