anonymous
  • anonymous
help please? how do i convert Convert 4.50 x 105 ng to Mg
Chemistry
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SOLVED
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chestercat
  • chestercat
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JoannaBlackwelder
  • JoannaBlackwelder
I would suggest to first convert to grams, then to Mg.
JoannaBlackwelder
  • JoannaBlackwelder
Any ideas of how to do the first step?
anonymous
  • anonymous
(1. 450000ng * 10^-9grams 1ng = .0045grams 2.) /0045grams * 1Mg 10^6 grams =4.5*10^-10Mg

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JimDemers
  • JimDemers
Assuming thast your original number is \[4.50 \times 10^{5} ng\] and that you want the number of mg, all you need to do is reduce the exponent by 6. (There are 1,000,000 ng in a mg.) That leaves you with \[4.50 \times 10^{-1} mg\].

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