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I need some chem help?
I have a couple chemistry problems that I can't seem to figure out
Here they are
How many moles of Neon are in 7.53x10^23 atoms of Neon?
What is the molar mass of Sucrose (C12H22O11)?
How many grams are in 3 moles of Water?
Also this
the formula for caffeine is C3H10N4O2. how many total atoms are in 0.75 moles of caffeine
2 réponses
- ChemTeamLv 7il y a 6 ans
7.53x10^23 atoms divided by 6.022 x 10^23 atoms/mole = 1.25 mol
342.2948 g/mol
54 g (if you want to be technical about it, give 50 as the answer. it has one sig fig just like 3 does.)
- Anonymeil y a 5 ans
I do not consider that this is right
