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Question 1 of 3

The RMM of Morphine Sulphate is 118.0. How many moles of Morphine Sulphate are there in 1.18 g?

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moles
There are 0.01 moles of Morphine Sulphate.

Number of Moles =    Mass of Component   
RMM
Moles of Morphine Sulphate =    1.18    moles
118

Moles of Morphine Sulphate = 0.01 moles

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Question 2 of 3

How many moles of Sodium Chloride are there if a solution contains 2.3 grams of Sodium Chloride? Answer to 4 decimal places.

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moles
There are 0.0393 moles of Sodium Chloride.

RMM of Sodium Chloride = 23.0 + 35.5 = 58.5

Number of Moles =   Mass of Component  
RMM

Moles of Sodium Chloride =   2.3   moles
58.5

Moles of Sodium Chloride = 0.03931 moles

Moles of Sodium Chloride = 0.0393 moles to 4 decimal places

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Question 3 of 3

1 mole = 1000 millimoles. How many millimoles of Ascorbic Acid (RMM 176.1) are there in 12 grams of Ascorbic Acid? Answer to one decimal place.

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mmoles
There are 68.1 millimoles of Ascorbic Acid.

Number of Moles =   Mass of Component  
RMM

Moles of Ascorbic Acid =    12    moles
176.1

Moles of Ascorbic Acid = 0.06814 moles

Moles of Ascorbic Acid = 1000 x 0.06814 = 69.14 mmoles

Moles of Ascorbic Acid = 68.1 mmoles to one decimal place

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