Question Completion Status: A student was given an unknown liquid and told that it is one of the liquids in the box below. He weighed a 50-mL graduated cylinder then he poured 20.0 mL of the liquid in it and weighed it again. He recorded the following masses in his notebook: Mass of 50-mL graduated cylinder 59.3876 g Mass of 50-mL graduated cylinder + liquid 89.2876 g Density (g/mL) 1.027 Chemical chlorobenzene 1,3-dichloropropane n-butyl bromide 1,2,3-trichlorbenzene chloroform carbon tetrachloride 1.189 1.299 1.417 1.498 1.595 What is the likely identity of the liquid? O Carbon tetrachloride O n-butyl bromide O Chloroform O 1,2,3-trichlorobenzene

Question Completion Status: A student was given an unknown liquid and told that it is one of the liquids in the box below. He weighed a 50-mL graduated cylinder then he poured 20.0 mL of the liquid in it and weighed it again. He recorded the following masses in his notebook: Mass of 50-mL graduated cylinder 59.3876 g Mass of 50-mL graduated cylinder + liquid 89.2876 g Density (g/mL) 1.027 Chemical chlorobenzene 1,3-dichloropropane n-butyl bromide 1,2,3-trichlorbenzene chloroform carbon tetrachloride 1.189 1.299 1.417 1.498 1.595 What is the likely identity of the liquid? O Carbon tetrachloride O n-butyl bromide O Chloroform O 1,2,3-trichlorobenzene

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter2: Measurements In Chemistry

Section: Chapter Questions

Problem 2.100EP: A two-gram sample of a red-colored liquid is found to have a volume of four cubic centimeters....

See similar textbooks

Similar questions

A two-gram sample of a red-colored liquid is found to have a volume of four cubic centimeters. Calculate the liquids density using the following uncertainty specifications, and express your answers in scientific notation. a. 2.00 g and 4.000 cm3 b. 2.000 g and 4.0 cm3 c. 2.0000 g and 4.000 cm3 d. 2.000 g and 4.0000 cm3
(a) To identify a liquid substance, a student determined itsdensity. Using a graduated cylinder, she measured out a 45-mLsample of the substance. She then measured the mass of thesample, finding that it weighed 38.5 g. She knew that the substancehad to be either isopropyl alcohol (density 0.785 g/mL)or toluene (density 0.866 g/mL). What are the calculated densityand the probable identity of the substance? (b) An experimentrequires 45.0 g of ethylene glycol, a liquid whose densityis 1.114 g/mL. Rather than weigh the sample on a balance, achemist chooses to dispense the liquid using a graduated cylinder.What volume of the liquid should he use? (c) Is a graduatedcylinder such as that shown in Figure 1.21 likely to afford theaccuracy of measurement needed? (d) A cubic piece of metalmeasures 5.00 cm on each edge. If the metal is nickel, whosedensity is 8.90 g/cm3, what is the mass of the cube?
You are asked to determine the mass of a piece of copper using itsreported density, 8.96 g/mL, and a 150-mL graduated cylinder.First, you add 105 mL of water to the graduated cylinder; thenyou place the piece of copper in the cylinder and record a volumeof 137 mL. What is the mass of the copper reported with the correctnumber of significant figures? (a) 287 g (b) 3.5 * 10-3 g/mL(c) 286.72 g/mL (d) 3.48 * 10-3 g/mL (e) 2.9 * 102 g/mL
You are asked to determine the mass of a piece of copper using itsreported density, 8.96 g/mL, and a 150-mL graduated cylinder.First, you add 105 mL of water to the graduated cylinder; thenyou place the piece of copper in the cylinder and record a volumeof 137 mL. What is the mass of the copper reported with the correctnumber of significant figures? (a) 287 g (b) 3.5 * 10-3 g/mL
With these values, calculate the specific gravity. the mass of empty cylinder = 40.8g mass of cylinder + the substance = 65.6g mass of the substance= 24.8g volume of the substance= 0.992g/mL experimental density of liquid= 1.828 g/mL Known density of liquid at 30degrees C= 1.00g/mL
Are these results correct: 1.- Show the units in scientific notations: Five Milliampere (mA) = 5 x 10^-3 Twenty-Two Mega joules (MJ) = 22 x 10^6 Six Micro coulombs (µC) = 6 x 10^-6 Eight Nanoseconds (ns) = 8 x 10^-9
A 25 mL water sample is placed in a dish that weighs 500 g, after evaporation and drying at 103 degree Celsius, and cooling in desiccator, the dish weighs 50.02 g. Then the dish is fired at 550 degree Celsius for one hour, after which it weighs 50.005 g. Calculate the total solids. (Answer should be in mg and should have 2 significant figures)
1.) A dense plastic-like shape has a mass of 42.985 g and has a volume of 41.96 mL. What is the density of the substance? 2.) Another plastic-like piece has a mass of 65.389 grams and displaces 53.652 grams of water (measured at 24.6 ⁰C). Is this piece likely to be composed of the same material as the sample in problem 1? Explain using the Claim-Evidence-Reasoning process.
two groups were asked to prepare 250 ml sodium hydroxide (NaOH) stock solutions using 0.0625 g of solid NaOH and water for their chemistry class. The table below shows the recorded measurements obtained bu the two groups:Group x = 0.0626g 0.0627g 0.0624g 0.0623gGroup y = 0.0620g 0.0622g 0.0627g 0.0628ga.which group has most accurate resultb. what are the standard dev of group x and group y (6 decimal places)c.which group has precise measurement
A student did not read the graduated cylinder correctly. He thought it said 25.0 mL when it really said 52.0 mL. Would this error make the value of qsurrounding higher or lower? Explain your choice.
An open buret drops 7.5 drops/second of a liquid with a density of 0.714 g/mL. Each drop is 16.5 microliters. How many grams of the liquid will collected from the drops if the buret runs for 2.15 minutes?
The following data were gathered during an experiment on the Analysis of Milk : Weight of empty beaker: 26.34 g Weight of the beaker + milk sample: 38.25 g Weight of milk sample: _______________ Volume of milk: 12.0 ml Density of milk: _____________g/ml Specific gravity of milk: _____________ Theoretical value for Sp. G. of milk is 1.03 Percentage difference: ________________