Search found 104 matches

by Anna Chen 1K
Thu Oct 03, 2019 11:28 pm
Forum: SI Units, Unit Conversions
Topic: 2.Mass Percentage and Decimal Rounding:
Replies: 10
Views: 168

Re: 2.Mass Percentage and Decimal Rounding:

I would just use the exact values on the periodic table values or the given values, not change the amount of sig figs. I usually only round to the hundredths place, if required, in the end.
by Anna Chen 1K
Thu Oct 03, 2019 11:25 pm
Forum: SI Units, Unit Conversions
Topic: Knowing Units
Replies: 7
Views: 148

Re: Knowing Units

I agree with the above post that you should memorize the common conversions used in chemistry. However, I am also unsure if you should memorize the pm to m conversion.
by Anna Chen 1K
Thu Oct 03, 2019 11:24 pm
Forum: SI Units, Unit Conversions
Topic: Sig Fig Mistakes
Replies: 17
Views: 348

Re: Sig Fig Mistakes

When dealing with multiplication or division problems, the number of sig figs in your answer should equal the smallest number of sig figs in the given values. When dealing with addition and subtraction problems, the number of sig figs in your answer should equal the smallest number of decimal places...
by Anna Chen 1K
Thu Oct 03, 2019 11:12 pm
Forum: SI Units, Unit Conversions
Topic: unit conersations
Replies: 7
Views: 147

Re: unit conersations

You should convert from a smaller unit to a larger unit when the value you are looking for in your answer requires a larger unit but the given value in the question came in the smaller unit. For example, when looking for mass, you should write your answer in grams, which means you would need to conv...

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