Lab questions, Chemistry

Assignment Help:
1. List possible manipulation errors that might contribute to the following errors in results:
1) obtaining a significantly larger amount of NaCl than was present in the original sample:


2) obtaining a significantly smaller amount of SiO2 than was present in the original sample.

2. Use the information in the table to answer the following questions.

-----------soluble in:------------------
----- cold water--hotwater--3MHCl--3MNaOh
benzoic acid --no----yes-------no-----yes--
Mg(OH)2 -----no-----no------yes-----no---
Na2SO4 -----yes----yes-------yes----yes--
Zn(OH)2 -----no-----no--------yes----yes--

Related Discussions:- Lab questions

Explain the process of reaction mechanism., According to Collision theory a...

According to Collision theory a chemical reaction takes place due to collision between the particles of these reactants. The number of reacting species (atoms, ions or molecules) w

What is vulcanization, What is vulcanization The process of vulcanizati...

What is vulcanization The process of vulcanization was discovered by Charles Good Year in 1839. He found that when natural rubber is heated with sulphur, its tensile strength,

Higher fatty acids - carboxylic acids, Higher fatty acids - Carboxylic acid...

Higher fatty acids - Carboxylic acids Stearic, Palmitic, and oleic acids are found in natural fats and oils like glyceryl esters. Higher fatty acids derived their names from

How do antiseptics differ from disinfectants? , Antiseptics doesn''t harm l...

Antiseptics doesn''t harm living cells whereas disinfectants harm living cells.and disinfectants are used to sterilize instruments and utensils but cant be used on skin....and  the

A sub-shell l= 2 can take how many electrons, A sub-shell l= 2 can take how...

A sub-shell l= 2 can take how many electrons: (1) 3        (2) 10       (3) 5       (4) 6 Ans: 10

dicarboxylic, how to prepare a dicarboxyl

how to prepare a dicarboxylic ?

The following has zero valency, The following has zero valency : (1) Sod...

The following has zero valency : (1) Sodium (2) Beryllium (3) Aluminium (4) Krypton Ans: Krypton

Illustrate process of extrusion, Illustrate process of extrusion. In t...

Illustrate process of extrusion. In this process a round heated billet of metal which is placed in a container is forced out through a die in a press. This process is normally

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd