Measurement and MatterIdentifying errors in the solution to a basic quantitative problemProblem:The density of a pure substance is its mass per unit volume. The density ofCalculate the mass of 555. mLethylene glycol has been measured to be 1097.Lof ethylene glycol.Be sure your answer has a unit symbol and the correct number of significantdigits.Solution:mОp =Write down the definition of density.Vm = pVSolve for mass.m =(1.097) (555.) gPut in the data given.m = 608.84... gUse the calculator.Om = 608.84 gRound to the correct number of significantdigits.оNo mistakes□□XμjgOpNJUfWXnLG

The density of the ethylene glycol =1097g/LThe volume of the ethylene glycol…

Answered: Measurement and Matter Identifying…

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.87PAE: 1.87 A solution of ethanol in water has a volume of 54.2 mL and a mass of 49.6 g. what information...

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1.87 A solution of ethanol in water has a volume of 54.2 mL and a mass of 49.6 g. what information would you need to look up and how would you determine the percentage of ethanol in this solution?
What is the difference between (a) mass and density? (b) an extensive and an intensive property? (c) a solvent and a solution?
3.37 If atypical grain of sand occupies a volume of 1.3 × 10-4 cm3, what is the volume (in cm3) of 1 mole of sand (ignoring the space between grains)? What is the volume in liters?
Exactly 1 liter of a solution contains 31.4 grams of a certain dissolved substance. What mass in grams is in exactly 2 liters? How about 7.37 liters? Express the results in the proper number of significant figures.
Beakers (a), (b), and (c) are representations of tiny sections (not to scale) of mixtures made from pure benzene and pure water. Select which beaker gives proper representation of the result when the two pure substances are mixed.
A solution made by dissolving sugar in water is homogeneous because the composition is the same everywhere. But if you could look with very high magnification, you would see locations with water particles and other locations with particles of sugar. How can we say that a sugar solution is homogenous?
A chemist must prepare 850. ml. of 10.0 mM aqueous potassium permanganate (KMnO,) working solution. She'll do this by pouring out some 13.0 mM aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in ml. of the potassium permanganate stock solution that the chemist should pour out. Be sure your answer has the correct number of significant digits. D X 5
Please don't provide handwritten solution ...
A chemist prepares a solution of copper(II) fluoride (CuF;) by measuring out 1.31 mg of copper(11) fluoride into a 50 mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/1. of the chemist's copper(II) fluoride solution. Be sure your answer has the correct number of significant digits. moll. OP
mol aqueous A chemist must prepare 675. mL of 195. mM aqueous aluminum sulfate (Al, (SO,) ) working solution. He'll do this by pouring out some 0.889 aluminum sulfate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the aluminum sulfate stock solution that the chemist should pour out. Round your answer to 3 significant digits.
An aqueous solution has a Molarity of 1.632 M. The density of the solution is (1.210x10^0) g/mL and the solute has a molar mass of (2.05x10^2) g/mol. What is the molality of this solution? Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to the highest power possible.
A chemist prepares a solution of nickel(1I) chloride (NICI,) by measuring out 1.2 x 10" umol of nickel(1I) chloride into a 250. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's nickel(11) chloride solution, Round your answer to 2 significant digits.

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