calculating mass and correct number or decimal points

Chemistry
Tutor: None Selected Time limit: 1 Day

A sample of iron powder weighing 15.656 grams and a water ethanol mixture weighing 168.435 grams were added to a erlenmeyer flask that weighed 75.657 grams. Calculate the total mass (g) to the correct number of decimal places. Calculate the answer then round if necessary.

Oct 6th, 2015

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The mass of iron powder =15.656

Mass of water - ethanol mixture =168.435

Mass of the flask=75.657

Total mass=15.656+168.435+75.657=259.748g

=260 g rounded off 3 sf. 


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Oct 6th, 2015

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Oct 6th, 2015
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Oct 6th, 2015
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