What is the mass of a 4.29 cm cube of gold?

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Homework Help Overview

The discussion revolves around calculating the mass of a cube of gold with a given edge length of 4.29 cm, utilizing the known density of gold, which is 19.3 g/cm³.

Discussion Character

  • Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants explore the relationship between volume and mass, questioning how to accurately calculate the volume of the cube and its implications for mass. There is also a focus on the significance of significant figures in calculations.

Discussion Status

The conversation is ongoing, with participants providing insights into the calculations needed and questioning the accuracy of previous volume calculations. Some guidance has been offered regarding the importance of precision in mathematical operations.

Contextual Notes

There is mention of a specific platform (webassign) that may impose additional constraints on the format or precision of answers submitted, which could affect the discussion.

Kdawg22
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I need help with this question.

Each cubic centimeter of gold has a mass of 19.3 g. A cube of gold measures 4.29 cm on each edge.

What is its mass?
 
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Well, you know that every cubic centimetre of gold has a mass of 19.3 g. In other words, you've been given its density (19.3 g/cm3). What more do you need? If you know the total volume of the gold that you have, then you know the total mass of that volume of gold. Now, how does one go about calculating the volume of a cube given the length of its edges?
 
I know the volume is 79.0 cm3, I figured that meant the answer was 1524.7g, but I am working with webassign and it won't accept that.
 
4.29^3 is not 79.0. Maintain at least 4 decimal places during intermediat calculations. As a matter of fact, 79.0 has the incorrect number of sig-figs to begin with.
 

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