# Problem: 6.02 x 1021 molecules of an unknown substance X has a mass of 11.0 grams. What is the molar mass of X in g/mole? (A) 110 g/mol (B) 220 g/mol (C) 1100 g/mol (D) 2200 g/mol (E) cannot be determined without the formula of X

###### FREE Expert Solution
81% (288 ratings)
###### Problem Details

6.02 x 1021 molecules of an unknown substance X has a mass of 11.0 grams. What is the molar mass of X in g/mole?

(A) 110 g/mol

(B) 220 g/mol

(C) 1100 g/mol

(D) 2200 g/mol

(E) cannot be determined without the formula of X

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 is the difficulty of this problem?

Our tutors rated the difficulty of6.02 x 1021 molecules of an unknown substance X has a mass o...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 2 minutes and 42 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Cohen Fray's class at UTOLEDO.