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saba-ehsan
over 3 years ago
Chemistry
0
youssef-el-toum
over 4 years ago
Chemistry
why companies are making a great effort in synthesising a medicine for Alzheimer?
it's a question from my biochemistry test
0
Relative atomic mass and average atomic mass
A haemoglobin sample is found to contain 0.335% Fe. What is the molecular mass of haemoglobin? Each haemoglobin molecule has four subunits.
0
Analysis of mixture and titration
How do you determine the alkalinity of a titration of HCl with mixture of bicarbonates and carbonate.
0
jully-vaghasia
almost 6 years ago
Chemistry
Tricarboxylic acid cycle
1. tRicarboxylic acid cycle to be continued requires regeneration
0
oyewalemalik
about 6 years ago
Chemistry
enantiomers of organic compound and naming of the compounds
good and precise topic
0
phuong-nguyen-7gf
5 months ago
Chemistry
So sánh tính chất các oxit, các hidroxit của N và P
Các oxit, Hidroxide của N và P
4
christy-yaros
6 months ago
Chemistry
What are the different kinds of particles in the nucleus? Compare their properties with each other and those of the electrons (10 marks).
Use chemistry source books, especially atomic theory Dalton
11
storm-reynero
8 months ago
Chemistry
How many grams of NaCl are produced when 20.00 mol of NaClO3 react?
It is mass to mole and work must be shown on paper!!
7
Determine the heat released when 12.5g Al reacts with 26.5g Fe3O4(s)
There are 3 tasks to this problem:Balanced equation and identifying limiting reagentCalculating ΔHreaction from enthalpies of formationCalculating the heat given off by the complete consumption of the limiting reagent
8
brian-mpho
over 1 year ago
Chemistry
Calculate the molality of a solution consisting of 1.88 mL of carbon tetrachloride in 75.0 mL of chloroform as solvent
c=n/v.....................................................................
6
phuong-nguyen-7gf
5 months ago
Chemistry
So sánh tính chất các oxit, các hidroxit của N và P
Các oxit, Hidroxide của N và P
4
"What is meant by the reference form of an element? What is the standard enthalpy of formation of an element in its refer-ence form?"
I would be grateful if someone could tell me about the enthalpy of an element!!
1
Describe the Frasch process for mining sulfur.
Docsity has always been proven trustworthy as far as my experience is concern, so fellows here is another one for you what is Frash Process.
1
"What is meant by the standard enthalpy of formation of a substance?"
I cant figure it out. Please provide the solution of the standard enthalpy of formation.
3
"A test tube contains a solution of one of the following salts: NaCl, NaBr, NaI. Describe a single test that can distin-guish among these possibilities."
Hi! Please help me I am stuck with above question, i am really grateful to you.
1
Al disolver 13,2 g de urea en 60,8 g de agua la presión de vapor a 28 °C desciende de 28,35 mm a 26,62 mm. Hallar el peso molecular de la urea.
chemisty.............................
5
Chemistry