30.5k views
0 votes
How many grams are in 5.60 moles of sodium hydroxide (NaOH)​

User Ido Cohen
by
4.7k points

2 Answers

4 votes

Answer: I believe it should be 224g.

Explanation: There are 40g for every one mole of NaOH, so multiply the two to get to 224. I hope that helps!

User Aksu
by
4.4k points
3 votes

Mass of NaOH = 223.983 g

Further explanation

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12

1 mole = 6.02.10²³ particles

While the number of moles can also be obtained by dividing the mass (in grams) by the molar mass of an element or molecule


\tt \boxed{\bold{n=(mass)/(MW)}}

MW of NaOH = 39.997 g/mol

moles of NaOH= 5.6

Mass of NaOH :


\tt mass=mol* MW\\\\mass=5.6~moles* 39,997 g/mol\\\\mass=223.983~g

User Cygil
by
4.5k points