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An object weights exactly 5 g on an analytical balance that has an accuracy of 0.1 mg to how many significant figures should this mass be recorded?
5 To the tenth of a milligram = 5.0000 g
How many significant figures does 0.050200 mg have?
0.050200 mg has 5 significant figures. The zeros before the 5 are considered significant when they come after a decimal point.
What number has the greatest number of significant figures?
0.00684 has three significant figures The product of 7.6 x 1.246321 has two significant figures. 28623 has five significant figures. 1.20000 x 10-19 has six significant figures. Trailing zeroes after a decimal point are considered significant. In scientific notation, only the numbers before the multiplication symbol are considered significant.
Who invented significant figures?
William Thomson, also known as Lord Kelvin, is credited with introducing the concept of significant figures in the late 19th century. He recognized the importance of indicating the precision of measurements by using digits that were known with certainty along with one uncertain digit.
If patient gets phenobarbital 32.4 mg is it the same as giving him 30mg?
Yes, giving the patient 32.4 mg of phenobarbital is similar to giving them 30 mg. The difference is quite small, and in clinical practice, it would likely not have a significant impact on the patient's response to the medication.
