# 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

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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 Calculating Molar Mass concept. You can view video lessons to learn Calculating Molar Mass. Or if you need more Calculating Molar Mass practice, you can also practice Calculating Molar Mass practice problems.

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