Other Chemistry Answers

List various symmetry elements and give the symmetry operations associated with each of them.

Derive the symbol for the ground state of carbon atom.

Discuss the origin of various spectral lines in the atomic spectrum of hydrogen. Draw a suitable diagram.

What is the Normality of a solution made by diluting 50.00 ml of H2SO4 with a specific gravity of 1.080 containing 11.60% H2SO4 by weight to one liter with water?

The combustion of sugar, in a bomb calorimeter is similar to the oxidation of sugar in the body. A student ate three sugar cubes, with the masses of 6.84g, 6.75g and 6.79g.

A) calculate the overall molar enthalpy of oxidation of sugar in the body.

B) using these three sugar cubes as representative of regular-sized cubes, determine the amount of energy released by an average-sized cube.

A cake recipe calls for 3.75 g of NaHCO3. How many L of CO2 in L is produced in your cake.

1.)How much iron is present in 8 . 13 g of iron(III) oxide? Answer in units of g.

2.) A chemist wants to extract the gold from 62 . 21 g of AuCl 3 · 2 H 2 O (gold(III) chloride dihydrate) by electrolysis of an aqueous solu- tion. What mass of gold could be obtained from this sample? Answer in units of g.

3 (part 1 of 2) 10.0 points The molecular weight of erbium is 167 . 259 g/mol, sulfur is 32 . 065 g/mol, oxygen is 15 . 9994 g/mol, hydrogen is 1 . 00794 g/mol, carbon is 12 . 0107 g/mol, tin is 118 . 71 g/mol, and strontium is 87 . 62 g/mol. What is the percentage of C in glycerol? Answer in units of %.

4 (part 2 of 2) 10.0 points What is the percentage of H in glycerol? Answer in units of %.

5). 10.0 points What is the % carbon, by weight, in a 0 . 166 g sample of C 2 H 6 ? Answer in units of %.

Give scientific reasons:(1)Electron affinity increases along a period.(2)First ionization potential value is smaller than second Ionization value.(3)Na+,Mg+2 and Al-3 are iso- electronic ions.

Give scientific reasons:(1) Rate of reaction is directly proportional to concentration of reactant.(2)Rate of reaction becomes double for every 10K rise in temperature.

How to determine nitrite using cadmium reduction column by titration method ?
I am going to do this experiment in the laboratory & I need to find out the exact measurements for this method.