Hi asked in Science & MathematicsChemistry · 4 weeks ago

# Is 0.50 percent equal to 0.5 g/mol or 0.50 g/mol?

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• 4 weeks ago

0.5% means 0.5 out of 100 or 0.005 out of 1.

• Dr W
Lv 7
4 weeks ago

neither

.. (1) 0.50% is a % whilst 0.5 g/mol and 0.50 g/mol are molar masses

.. . .. %'s are very weakly related to molar masses

.. (2) I seriously doubt you'll find any substance with a molar mass = 0.5 g/mol

.. (3) 0.50 has 2 sig figs.... 0.5 has 1 sig fig... 0.50 has 2 sig figs

.. .. . is there an operation you're doing and trying to find sig figs?

• Anonymous
4 weeks ago

Maybe yes, maybe not.  Not enough information to tell you how many g/mole is 0.50 percent.

• 4 weeks ago

Percentage and molarity...

Are you asking about the significant digits, because there is no way to relate the amount in grams per mole of an unknown substance to a percentage.  Grams per mole is the units of molar mass, but could be related to other measurements.

0.50% has two significant digits

0.5 g/mol has one significant digit

0.50 g/mol has two significant digits

• Henry
Lv 5
4 weeks ago

The question below is "Do moles have feelings?".

• Bill
Lv 7
4 weeks ago

Neither unless you are dealing with a solution that is 100 g/mol.

• Argent
Lv 7
4 weeks ago

If there are two significant digits in the question, there should be two significant digits in the answer. 0.50% has two, so 0.50 (with two) is the correct choice.