To calculate # of atoms given mass:
Avogadro’s number = 6.022 x 1023 entities
entities = atoms, ions, molecules, particles, formula units
Cu(NO3)2: 1 Cu x 63.55 g/mol = 63.55 g/mol
2 N x 14.00 g/mol = 28.00 g/mol
6 O x 16.00 g/mol = 96.00 g/mol (multiply O by its subscript: 3 x 2 = 6)
Sum = 187.55 g/mol
How many nitrogen atoms are in 10.2 g of copper(II) nitrate?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Mole Concept concept. You can view video lessons to learn Mole Concept. Or if you need more Mole Concept practice, you can also practice Mole Concept practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Buonopane's class at SHU.