Question

How many grams are in 5.60 moles of sodium hydroxide (NaOH)​

Answer 1

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!

Answer 2

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  

$\tt \boxed{\bold{n=\dfrac{mass}{MW}}}$

MW of NaOH = 39.997 g/mol

moles of NaOH= 5.6

Mass of NaOH :

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