solving proportions, using exponents. proportions many chemistry problems deal with changing one...
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![Page 1: Solving Proportions, Using Exponents. Proportions Many chemistry problems deal with changing one variable and measuring the effect on another variable](https://reader038.vdocuments.us/reader038/viewer/2022110100/56649de85503460f94ae24a5/html5/thumbnails/1.jpg)
Solving Proportions,
Using Exponents
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ProportionsMany chemistry problems deal with changing one variable and measuring the effect on another variable.
We call these proportions (fractions) when there is a direct relationship between the two variables.
When you recognize a problem as a proportion, you can easily solve it by cross- multiplying to isolate the unknown variable.
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Proportions
Solve for x.
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Proportions
Solve for x.
![Page 5: Solving Proportions, Using Exponents. Proportions Many chemistry problems deal with changing one variable and measuring the effect on another variable](https://reader038.vdocuments.us/reader038/viewer/2022110100/56649de85503460f94ae24a5/html5/thumbnails/5.jpg)
Proportions
Solve for x.
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Proportions
Solve for x.
![Page 7: Solving Proportions, Using Exponents. Proportions Many chemistry problems deal with changing one variable and measuring the effect on another variable](https://reader038.vdocuments.us/reader038/viewer/2022110100/56649de85503460f94ae24a5/html5/thumbnails/7.jpg)
ExponentsUnderstanding and using exponents and logarithms will be essential in chemistry.positive powers: 33 = 3*3*3
negative powers: 3-3 =
negative bases: -33 = -3*-3*-3fractional bases: 3 = **
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ExponentsUnderstanding and using exponents and logarithms will be essential in chemistry.powers of 1: 31 = 3
powers of 0: 30 = 1
radicals: = 31/3
mixed radicals: = 32/3
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ExponentsUnderstanding and using exponents and logarithms will be essential in chemistry.multiplying common bases:
33*32 = 33+2
dividing common bases: 33÷32 = 33–2
base 10 logarithms:log10(100) = 2
102 = 100natural logarithms:loge(148.4) = 5
e5 = 148.4
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Logarithms
Calculate log(71)
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Logarithms
Calculate log(1684)
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Logarithms
Calculate 103
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Logarithms
Calculate ln (0.03)
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Logarithms
23) Calculate e-1.08