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Inorganic Chemistry
Why is insulin given by injection rather than by mouth?
Inorganic Chemistry
a strong current of trivalent gaseous boron passed through germanium crystal decreases the density of the crystal due to part replacement of germanium by boron and due to interstitial vacancies is created by missing germanium atoms. in one such experiment one gram germanium is taken an d boron atoms are found to be 150 ppm by weight when the density of germanium crystal decreases by 4%. calculate the percentage of missing vacancies due to germanium which are filled up by boron atoms.
Inorganic Chemistry
0.44g of co2 and 22.4 L of H2 at STP are mixed in a container.The total number of molecules present in the container will be?
Inorganic Chemistry
calculat the molar concentration of ammonium-sulphate (NH4)2SO4 (molar mass 132.14 g/mol) in a solution if the sulphur concentration are found to be 10.0 microgram/gram.
Inorganic Chemistry
CrCl3 + KOH + Cl2 = K2CrO4 + KClO4 + KCl + H2O
how to balance this reaction ?
how to balance this reaction ?
Inorganic Chemistry
oxide of element contain 72.72% of oxygen and vapour density of chloride is 77 . calculate atomic weight of element
Inorganic Chemistry
If a sample of NH4NO3 contained 5.04 x 10^22 hydrogen atoms, how many moles of NH4NO3 are in your sample?
Inorganic Chemistry
addition reactions
1) aluminum + sulfur=
1) aluminum + sulfur=
Inorganic Chemistry
(f) (3 pts) Suppose you performed a distillation of a solution containing 1-pentanol (C5H12O), 2-pentanol (C5H12O), 3-pentanol (C5H12O), and methyl alcohol (CH4O). All three pentanols here have the same chemical formula, but they do have a different arrangement of their atoms (i.e. they are shaped differently), so this makes them have slightly different properties from one another. During the distillation, you collect the FIRST product that comes out, and set it aside. Then, you collect the SECOND product that comes out, and set it aside Then, you collect the THIRD product, analyze it, and determine that it has a formula mass of approximately 88 amu. What is the identity of this second product that you collected? How do you know (discuss ALL relevant data)? (HINT: You will find the table at http://www2.stetson.edu/~wgrubbs/datadriven/petermurphy/flame/table1.html very helpful when answering this question!)
Inorganic Chemistry
the largest number of molecules is in:
a)36 gm H2o
b)28 gm CO
c)46 gm C2H2OH
d)54 gm NO5
a)36 gm H2o
b)28 gm CO
c)46 gm C2H2OH
d)54 gm NO5
