38.3k views
5 votes
How many moles are in 2.3 grams of phosphorus

Please round to significant number i got .07 after round it to the significant number lease correct me i'm wrong

User Janniks
by
7.2k points

1 Answer

4 votes
Molar mass of phosphorus (p) : 30.9 g/mol

1 mole P ----------- 30.9 g
x mole -------------- 2.3 g

30.9 * x = 2.3* 1

30.9 x = 2.3

x = 2.3 / 30.9

x = 0.07 moles

User Kuba Spatny
by
8.3k points