Chapter 2: Q6P (page 44)
Explain the principle of operation of an electronic balance.
Short Answer
For the working principle of electronic scales in the highest precision class, electromagnetic force compensation is a suitable measurement principle
/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none}
Learning Materials
Features
Discover
Chapter 2: Q6P (page 44)
Explain the principle of operation of an electronic balance.
For the working principle of electronic scales in the highest precision class, electromagnetic force compensation is a suitable measurement principle
All the tools & learning materials you need for study success - in one app.
Get started for free
For chemical disposal, why is dichromate converted to
Water was drained from a buret between the 0.12- and 15.78-mLmarks. The apparent volume delivered was15.78-0.12=15.66mL. Measured in the air at the mass of water delivered was. What was the true volume?
A sample of ferric oxide , density 5.24g/mL) obtained from ignition of a gravimetric precipitate weighed 0.2961gin the atmosphere. What is the true mass in vacuum?
(a) Effect of altitude on electronic balance. If an object weighsgrams at distance from the center of the Earth, it will weigh when raised to role="math" localid="1663305908411" . An object weighs 100.0000g on the first floor of a building at . How much will it weigh on the tenth floor, which is 30mhigher?
(b) If you press the "calibrate" button of the electronic balance on the tenth floor before weighing the object, the observed mass will be 100.0000g. Why?
(a) The equilibrium vapor pressure of water at \({20^\circ }{\rm{C}}\) is \(2330\)Pa. What is the vapor pressure of water in the air at \({20^\circ }{\rm{C}}\)if the relative humidity is \(42\% \) ? (Relative humidity is the percentage of the equilibrium water vapor pressure in the air.)
(b) Use note \({\bf{13}}\) for Chapter \({\bf{2}}\) at the end of the book to find the air density\(({\rm{g}}/{\rm{mL}}\),not \({\rm{g}}/{\rm{L}})\)under the conditions of part\(\left( {\bf{a}} \right)\)if the barometric pressure is\(94.0{\rm{kPa}}\).
(c) What is the true mass of water in part \(\left( {\bf{b}} \right)\)if the mass in air is\(1.0000\;{\rm{g}}\)?
What do you think about this solution?
We value your feedback to improve our textbook solutions.