HELP 1 Density-volume question?

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Homework Help Overview

The discussion revolves around a density-volume problem involving an unknown liquid with specified mass and volume. Participants are tasked with identifying the substance based on its density and considering the implications of changing the substance to water.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants explore the definition of density and its relationship to mass and volume. There are attempts to apply the density formula to identify the substance and calculate new volume under different conditions.

Discussion Status

The discussion includes various attempts to solve the problems presented. Some participants express uncertainty about the answers, while others provide guidance on using the density formula. There is no clear consensus on the correctness of the answers provided.

Contextual Notes

Participants question the definitions and calculations related to density, and there is mention of confusion regarding the application of the formula. The original poster indicates urgency in seeking help.

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HELP! 1 Density-volume question!??URGENT!

Homework Statement


1.An unknown liquid has a mass of 26.366g and volume of 25.24 x10^-3 liters at 25'C.
Identify the likely substance from the following information.

Substance tricholorobenzene (density:1.454g/mL)
acetone (density: 1.049g/mL)
chloride( denisty: .8862g/mL)

2. If the substance had been water with a density of .9982g/mL at 25'C, what would be its new volume?

Homework Equations



g/mL

The Attempt at a Solution


1.26.366g/(25.24ml) => acetone
2. i have no idea...g/mL density .9982g/mL

Please HELP!
 
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What is density definition?
 


g/mL =density =mass/volume? intensive physical property!
please help!
 


Right.

d = \frac m V

You are given mass, you are given density - solve for V.
 
Last edited by a moderator:


is the answer for 1 acetone?
is the answer for 2 25.19ml?

I know the formula already;;;;g/ML
 


SAT2400 said:
is the answer for 1 acetone?
is the answer for 2 25.19ml?

1 - yes, 2 - no.

I know the formula already;;;;g/ML

That's not the formula. That's - at best - density unit.

Slow down. Solve for V. Write it using symbols that I have used earlier.
 
Last edited by a moderator:

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