answersLogoWhite

0


Best Answer

The rule for significant figures is that when adding, subtracting, dividing, or applying any mathematical treatment, one cannot calculate a result that has more significant digits than that of the input with the least number of significant digits. This is because any result cannot be more accurate than the least accurate input.

User Avatar

Wiki User

โˆ™ 2014-08-26 18:44:28
This answer is:
User Avatar
Study guides

Chemistry

20 cards

How does a buffer work

What happens in a neutralization reaction

What is a conjugate acid-base pair

Why is water considered to be neutral

โžก๏ธ
See all cards
3.9
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
868 Reviews

Add your answer:

Earn +20 pts
Q: What is the Rule about significant figures when adding or subtracting measurements?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

Adding And Subtracting metric units?

First you work our how much to divide multiply by ( 1000,100,10 ). Then u add or subtract the amount


What is the particle that results when an electron is added to an atom?

Any change (whether it be adding or subtracting) to the number of electrons would result in an ion. When an electron is added, the atom is called an anion. (If electrons are subtracted, it is a cation.)


Why is mathematics important in engineering?

Many of the calculations done by a working ChE involve Thermodynamics, Physical Chemistry and Kinetics and Catalysis. It's not just adding and subtracting by any means. A firm background in Math is required. I suggest that you find a copy of Perry's Chemical Engineering Handbook in the library, and thumb through it. You will get an feel for some of the work done.


Adding salt to water lowers the freezing point?

yes. Adding salt makes it harder for the water molecules to form crystals.


What is the solubility of barium chromate?

If At 25 Degrees C, the molar solubility of barium chromate in water is 1.1 x 10^-5 M. Here is how you would find the solubility in grams per liter.First: You must know the molar mass of Barium Chromate To continue. Look at your periodic Table.[BariumChromate Molar mass=253.37 g/mol]*Get this by adding together atomic number of each element in BaCrO4*253.37= Ba+Cr+O(4), or 137.33+52+16(4)*Take 1.1 x 10^-5 M and divide by molar mass of Barium Chromate1.1 x 10^-5 mol/L x 253.37 =0.002787Answer in grams per liter to three significant figures=2.787 x 10^-3 g/LHow many liters of water are required to dissolve 1 of barium chromate?*take 1gram BaCrO4 / 2.787 x 10^-3 g/L --------> Grams Cancel=2.787 x 10^-3 LAnswer in liters to three significant figures =359.71 LitersWhat is the solubility of barium chromate in parts per million?*parts per million = Grams of Solute/grams of solution X 10^6 (which is ppm)2.787 x 10^-3g/L x 1L/1000g x 10^6 = 0.02779, or 2.78 x 10^-2ppmAnswer in parts per million to three significant figures=2.78ppm**For dilute aqueous solutions, ppm is equivalent to units of mg/l

Related questions

How do you decide how many significant figures the answer should have when you are adding and subtracting?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.


How do you determine how many significant figures to keep in an answer obtained by adding and subtracting?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.


What determines the number of allowed significant digits when adding or subtracting?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.


What is the rule for significant figures when adding or subtracting decimals?

When adding and/or subtracting, your answer can only show as many decimal places as the measurement having the fewest number in the decimal places.


Adding significant figures?

When adding or subtracting significant figures(sig figs), the answer will be significant to the same number of decimal places as the number with the least number of decimal places used in the calculation. Example: 12.44+1.6+133.887=147.927 ==>147.9


In adding the measurements 11.074m 18.2m and 16.943m what should be the number of significant figures in the result?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.


In adding the measurements 11.074 m 18.2 m and 16.943 m what should be the number of significant figures in the result?

Three significant figures: two before the decimal point and one after.


Why are significant figures used and how are significant figures obtained?

Significant figures are used to receive a more accurate number. To obtain the number you you multiply or divide the quantities, leave as many significant figures in the answer as there are in the quantity with the least number or significant figures. If adding or subtracting quantities, leave the same number of decimal places in the answer as there are in the quantity with the least number of decimal places


What math qualifications do you need to be a baker?

measurements, adding, subtracting, fractions, and monet


What is the rule for adding or subtracting significant digits?

Make sure the answer is rounded to significant digits as well.


In adding the measurements 11.075m 18.2m and 16.943m what should be the number of significant figures in result?

Forget about "significant figures"; those are used to determine the precision when you multiply or divide. When adding numbers, the rule is that the result should be rounded according to the precision of the least accurate of the addents. In this case, to one decimal digit.


When you're adding numbers how many significant numbers are there?

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

People also asked