Analytical Balance - Revision history

Mjimenez47: Mjimenez47 moved page Gravimetric Buoyancy to Analytical Balance over redirect: Misspelled title

2025-07-07T19:27:48Z

Mjimenez47 moved page Gravimetric Buoyancy to Analytical Balance over redirect: Misspelled title

← Older revision		Revision as of 15:27, 7 July 2025
(No difference)

Dnanji: Dnanji moved page Analytical Balance to Gravimetric Buoyancy

2022-11-09T17:02:54Z

Dnanji moved page Analytical Balance to Gravimetric Buoyancy

← Older revision		Revision as of 13:02, 9 November 2022
(No difference)

Rzhou95 at 03:09, 6 October 2021

2021-10-06T03:09:14Z

← Older revision		Revision as of 23:09, 5 October 2021
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	{\|class="infobox"		{\|class="infobox"
	!style="font-size:135%;text-align:center;" \| VWR Analytical Balance		!style="font-size:135%;text-align:center;" \| VWR Analytical Balance [https://sites.gatech.edu/mse-mill/sop/analytical-balance/ [SOP<nowiki>]</nowiki>]
	\|-		\|-
	\|[[File:VWRBalance-052621.png\|center\|300px]]		\|[[File:VWRBalance-052621.png\|center\|300px]]

Amarin32 at 18:36, 29 June 2021

2021-06-29T18:36:48Z

← Older revision		Revision as of 14:36, 29 June 2021
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	\|'''Precision''': 0.1mg (0.0001g)		\|'''Precision''': 0.1mg (0.0001g)
	\|}		\|}
	The VWR Balances provide maximum weighing performance and are used for the accurate weighing of samples and precipitates. They are designed to measure small masses in the sub-milligram range. They are useful for determining density via the Archimedes method and can be used to take measurements over time. For example, ~~it could~~ be used to measure the rate at which a liquid evaporates.		The VWR Balances provide maximum weighing performance and are used for the accurate weighing of samples and precipitates. They are designed to measure small masses in the sub-milligram range. They are useful for determining density via the Archimedes method and can be used to take measurements over time. For example, they can be used to measure the rate at which a liquid evaporates.

	== Archimedes Method ==		== Archimedes Method ==

Amarin32: /* Archimedes Method */

2021-06-29T18:30:33Z

Archimedes Method

← Older revision		Revision as of 14:30, 29 June 2021
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	<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w}*\rho_s </math>		<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w}*\rho_s </math>

	where <math> \rho_s </math> is the density of the solvent		where <math> \rho_s </math> is the density of the solvent.


	[[Category:Equipment\|meas]]		[[Category:Equipment\|meas]]

Amarin32: /* Archimedes Method */

2021-06-29T18:30:04Z

Archimedes Method

← Older revision		Revision as of 14:30, 29 June 2021
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	The Archimedes method is used to determine the density of samples without needing to measure the sample’s physical dimensions. The difference in mass between the dry and submerged samples is equal to the volume of water displaced by the submerged sample because water has a density of ~1 gm/cm³. The density of the sample is found by taking the dry mass and dividing it by this volume. This method should only be used with samples that will not dissolve in water, as it will not work properly with water-soluble samples. The formula used is:		The Archimedes method is used to determine the density of samples without needing to measure the sample’s physical dimensions. The difference in mass between the dry and submerged samples is equal to the volume of water displaced by the submerged sample because water has a density of ~1 gm/cm³. The density of the sample is found by taking the dry mass and dividing it by this volume. This method should only be used with samples that will not dissolve in water, as it will not work properly with water-soluble samples. The formula used is:

	<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w} </math>		<math> \rho = \frac{m_d}{V} = \frac{m_d}{m_d-m_w} </math>

	where <math> \rho </math> is density (<math> g/cm^3 </math>), <math> V </math> is volume, <math> m_d </math> is the dry mass, and <math> m_w </math> is the submerged ("wet") mass.		where <math> \rho </math> is density (<math> g/cm^3 </math>), <math> V </math> is volume, <math> m_d </math> is the dry mass, and <math> m_w </math> is the submerged ("wet") mass.

Amarin32: /* Archimedes Method */

2021-06-29T18:29:51Z

Archimedes Method

← Older revision		Revision as of 14:29, 29 June 2021
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	<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w}*\rho_s </math>		<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w}*\rho_s </math>

	where <math> \|rho_s </math> is the density of the solvent		where <math> \rho_s </math> is the density of the solvent


	[[Category:Equipment\|meas]]		[[Category:Equipment\|meas]]

Amarin32: /* Archimedes Method */

2021-06-29T18:29:28Z

Archimedes Method

← Older revision		Revision as of 14:29, 29 June 2021
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	== Archimedes Method ==		== Archimedes Method ==
	The Archimedes method is used to determine the density of samples without needing to measure the sample’s physical dimensions. The difference in mass between the dry and submerged samples ~~(in g)~~ is equal to the volume of water displaced by the submerged sample ~~(in mL or cm^3)~~ because water has a density of ~~1gm~~. The density of the sample ~~can then be~~ found by taking the dry mass and dividing it by this volume. This method should only be used with samples that will not dissolve in water, as it will not work properly with water-soluble samples.		The Archimedes method is used to determine the density of samples without needing to measure the sample’s physical dimensions. The difference in mass between the dry and submerged samples is equal to the volume of water displaced by the submerged sample because water has a density of ~1 gm/cm³. The density of the sample is found by taking the dry mass and dividing it by this volume. This method should only be used with samples that will not dissolve in water, as it will not work properly with water-soluble samples. The formula used is:

	<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w} </math>		<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w} </math>

	where <math> \rho </math> is density (<math> g/cm^3 </math>), <math> V </math> is volume, <math> m_d </math> is the dry mass, and <math> m_w </math> is the submerged ("wet") mass,		where <math> \rho </math> is density (<math> g/cm^3 </math>), <math> V </math> is volume, <math> m_d </math> is the dry mass, and <math> m_w </math> is the submerged ("wet") mass.

	If a solvent other than water is used, or you need to take very precise density measurements based on liquid temperature, the formula becomes:		If a solvent other than water is used, or you need to take very precise density measurements based on liquid temperature, the formula becomes:

	~~[(Dry Mass)(Dry Mass~~ - ~~Wet Mass)]~~ * ~~Solvent Density~~		<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w}*\rho_s </math>

			where <math> \|rho_s </math> is the density of the solvent


	[[Category:Equipment\|meas]]		[[Category:Equipment\|meas]]

Amarin32 at 18:23, 29 June 2021

2021-06-29T18:23:52Z

← Older revision		Revision as of 14:23, 29 June 2021
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	The Archimedes method is used to determine the density of samples without needing to measure the sample’s physical dimensions. The difference in mass between the dry and submerged samples (in g) is equal to the volume of water displaced by the submerged sample (in mL or cm^3) because water has a density of 1gm. The density of the sample can then be found by taking the dry mass and dividing it by this volume. This method should only be used with samples that will not dissolve in water, as it will not work properly with water-soluble samples.		The Archimedes method is used to determine the density of samples without needing to measure the sample’s physical dimensions. The difference in mass between the dry and submerged samples (in g) is equal to the volume of water displaced by the submerged sample (in mL or cm^3) because water has a density of 1gm. The density of the sample can then be found by taking the dry mass and dividing it by this volume. This method should only be used with samples that will not dissolve in water, as it will not work properly with water-soluble samples.

	<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w}		<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w} </math>

	~~Take the dry mass of the sample and divide it by the difference between the dry and wet masses of the sample to get the sample’s density~~		where <math> \rho </math> is density (<math> g/cm^3 </math>), <math> V </math> is volume, <math> m_d </math> is the dry mass, and <math> m_w </math> is the submerged ("wet") mass,

	~~Dry Mass)(Dry Mass - Wet Mass)= Sample~~ density (g/cm^3)

	If a solvent other than water is used, or you need to take very precise density measurements based on liquid temperature, the formula becomes:		If a solvent other than water is used, or you need to take very precise density measurements based on liquid temperature, the formula becomes:

Amarin32 at 18:21, 29 June 2021

2021-06-29T18:21:22Z

← Older revision		Revision as of 14:21, 29 June 2021
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	The Archimedes method is used to determine the density of samples without needing to measure the sample’s physical dimensions. The difference in mass between the dry and submerged samples (in g) is equal to the volume of water displaced by the submerged sample (in mL or cm^3) because water has a density of 1gm. The density of the sample can then be found by taking the dry mass and dividing it by this volume. This method should only be used with samples that will not dissolve in water, as it will not work properly with water-soluble samples.		The Archimedes method is used to determine the density of samples without needing to measure the sample’s physical dimensions. The difference in mass between the dry and submerged samples (in g) is equal to the volume of water displaced by the submerged sample (in mL or cm^3) because water has a density of 1gm. The density of the sample can then be found by taking the dry mass and dividing it by this volume. This method should only be used with samples that will not dissolve in water, as it will not work properly with water-soluble samples.

			<math> \rho = \frac{m_d}{V} \frac{m_d}{m_d-m_w}

	Take the dry mass of the sample and divide it by the difference between the dry and wet masses of the sample to get the sample’s density		Take the dry mass of the sample and divide it by the difference between the dry and wet masses of the sample to get the sample’s density