Inorganic Chemistry Answers

At 700c, Kc+9 for the reaction SO2(g) + NO2(g)--SO3(g) + NO(g). If a vessel is filled with these four gaseous substances at equal initial concentration of 3.0*10^-3 mol/L at 700c, what is the equilibrium concentration of SO3(g)?

Somebody bought a drug that period of validity is 2 years kept in refrigerator at 3°C. But he put it for two weeks in a room at 25°C because of his negligence. It is known that drug will become invalid if 30% of it decomposes, the decomposition ratio of it is not related to the concentration of drug, and the activation energy of it to decompose is 135.0 kJ mol-'. To tell whether the drug is invalid by calculation? A. Decomposition ratio is 41.2%, invalid B. Decomposition ratio is 20.2%, effective C. Decomposition ratio is 62.1%, invalid D. Decomposition ratio is 18.3%, effective

How can I work out the STYX number/code for borane (B7H7)2-?

The formula for hydrated iron(II) sulfate is FeSO4.xH2O.The value of x is a whole number between 1 and 10. It can be determined by carrying out a titration with 0.0200 mol/dm3potassium manganate(VII) (KMnO4) solution as follows:• dissolve a sample of FeSO4.xH2O in water to make 250 cm3 of solution • measure out 25.0 cm3 of this solution into a conical flask • add the KMnO4 solution using a burette until the end point is reached• record the volume of solution added • repeat the titration three more times .The table shows the results. Concordant results are those within 0.20 cm3 of each other. Select concordant results from the table. *

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What is the name and formula of a coordination compound comprising of two types of complex ions: one, a complex ion of Cr (III) with ethylenediamine, having a coordination number of 6; the other a complex of Ni(II) with CN-, having a coordination number of 4.

Hi,

I am having some trouble finding E(cell) for the equation Constant=E(test) - E(Cell).

I have the value for E(test)=0.667 but unsure how to find E(cell)

the first inflection point the volume of AgNO3 added has been used to precipitate only AgI, but at the second inflection point the total volume of AgNO3 solution added has precipitated all Ias AgI and all AgBr.

the inflection points as followed: 21.725, 27.725, 32.85

Calcium reacts with nitrogen. Calculate the mass of the product that is formed when 127.56 g of calcium reacts with 149.52 g of nitrogen. Identify your limiting reactant on this question.

Calcium reacts with nitrogen

Calculate the mass of the product that is formed when 127.56 g of calcium reacts with 149.52 g of nitrogen. Indicate your ONE final mass answer on this question.

Sodium bromate reacts with calcium

What is the percentage yield if 82.7 g of sodium bromate reacts and 62.55 g of the calcium product is experimentally produced? 

_____Pb(NO3)2  +  _______KI  -->  ______PbI2  +  _______KNO3

 Calculate the mass of lead (II) iodide that is formed from 27.6 g of lead (II) nitrate.