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Readme [11.4K]
3 years ago
6

The medicinal thermometer commonly used in homes can be read to ±0.1°F, whereas those in the doctor's office may be accurate t

o ±0.1°C. Percent error is often expressed as the absolute value of the difference between the true value and the experimental value, divided by the true value: Percent Error= [|true value - Experimental value|/true value]x 100%. The vertical lines indicate absolute value. In degrees Celsius, express the percent error expected from each of these thermometers in measuring a person's body temperature of 38.9°C.
Chemistry
1 answer:
andrezito [222]3 years ago
8 0

Answer:

the percent error expected from each of theses person's body:

in homes:

% E = 0.14267 %

in doctor's office:

% E = 0.257 %

Explanation:

  • ° C = ( ° F - 32 ) * (5/9)
  • % E = ( | true - exp | / true ) * 100
  • body temp = 38.9 ° C = 102.02 ° F

thermometer used in homes:

⇒ T = 102.02 ° F  +/- 0.1 ° F = 102.12 ° F ∧  101,92 ° F

⇒ T = 102.12 ° F  = 38.9555 ° C

⇒ % E = ( | 38.9 - 38.9555 | ) / 38.9 ) * 100 = 0.14267 %

in the doctor's oficce:

⇒ T = 38.9 ° C  +/- 0.1 ° C = 39 ° C ∧ 38.8 ° C

⇒ % E = (( | 39 - 38.9 | ) / 38.9 ) * 100 = 0.257 %

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