chemistry

In a laboratory experiment, the density of a concentrated sugar solution was determined by measuring the volume of the solution and corresponding mass. Three students each made a set of measurements using a different balance and used the results to calculate density. Their results are summarized here.

Part2, rank from most to least accurate
error=(average measurement)-(accepted value)

what is the accepted value?

Density (g/mL)
Trial Set 1 Set 2 Set 3
a 1.380 1.347 1.346
b 1.400 1.479 1.499
c 1.374 1.401 1.301

Rank the data sets in decreasing order of precision

I know that your supposed to use this formula

deviation=(individual measurement)-(average measurement) this is all in absolute value, so its always positive.

  1. 👍 0
  2. 👎 1
  3. 👁 357
asked by helpp
  1. Set 1 varies from 1.374 to 1.400, a range of 0.026
    Set 2 varies from 1.347 to 1.401, a range of 0.054
    Set 3 varies from 1.301 to 1.499, a range of 0.198

    The narrower (smaller) the range, the greater the precision. Now you should be able to rank the three sets of results.

    1. 👍 0
    2. 👎 0
    posted by GK
  2. r3r3r44

    1. 👍 0
    2. 👎 0
    posted by dd

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Concentrated hydrochloric acid is 38% HCl by weight and has a density of 1.19 g/mL. A solution is prepared by measuring 70 mL of the concentrated HCl, adding it to water, and diluting to 0.500 L. Calculate the approximate molarity

    asked by JUNDY on March 15, 2015
  2. chemistry HELP

    laboratoories order hydrochloric acid as a concentrated solution (e.g. 36% W/V). what initial volume of concentrated laboratory hydrochloric acid should be diluted to prepare 5.00L of a 0.12 mol/L solution for an experiment? plz

    asked by TARA on December 9, 2010
  3. Chemistry

    A solution is prepared by adding 50.3 mL of concentrated hydrochloric acid and 16.6 mL of concentrated nitric acid to 300 mL of water. More water is added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for

    asked by Andre on February 28, 2012
  4. Chemistry

    A solution is prepared by adding 47.3 mL of concentrated hydrochloric acid and 16.3 mL of concentrated nitric acid to 300 mL of water. More water is added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for

    asked by Andrew on May 21, 2012
  5. Chemistry

    I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to

    asked by Jennie on April 30, 2015
  6. Chemistry Dr. Bob

    I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to

    asked by Jennie on April 30, 2015
  7. Chemistry

    I need help on my chem lab... I need to give you background info so you know how to help me.. Data Sheet: Specific gravity of distilled water Temp of distilled water = 20 C Specific gravity: 1.0000 or 1.000 (according to

    asked by Jennie on April 30, 2015
  8. Math

    Melanie needs 75% of sugar solution to conduct an experiment.However she only has 40% and90% sugar solution available .how much each solution must she use in order to obtain 60L of the75% of solution? Please answer now , it's very

    asked by Samar on March 1, 2017
  9. Chemistry

    Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in

    asked by K on January 13, 2011
  10. algebra

    A chemistry laboratory has supplies of two sulfuric acid solutions only. One is 10% concentrated and the other is 50% concentrated. How much of each solution should be mixed to make a 40 mL 25% sulfuric acid solution?

    asked by Nica on September 14, 2015

More Similar Questions