# Problem: 6.02 x 10 21 molecules of an unknown substance X has a mass of 2.00 grams. What is the molar mass of X in g/mole? (A) 0.02 g/mol (B) 0.2 g/mol (C) 20 g/mol (D) 200 g/mol (E) 2000 g/mol

🤓 Based on our data, we think this question is relevant for Professor Hummel's class at UIUC.

###### Problem Details

6.02 x 10 21 molecules of an unknown substance X has a mass of 2.00 grams. What is the molar mass of X in g/mole?

(A) 0.02 g/mol

(B) 0.2 g/mol

(C) 20 g/mol

(D) 200 g/mol

(E) 2000 g/mol

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 10 21 molecules of an unknown substance X has a mass ...as medium difficulty.

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Our expert Chemistry tutor, Sabrina took 2 minutes and 36 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 Hummel's class at UIUC.