Inorganic Chemistry Answers

1) why color of Zn EDTA complex is colourless?
2) what is meant by masking?

1) what are main type of edta titration?
2) how the interference of trace of copper in edta titration?
3) name another indicator which can be used instead of EBT as indicator
4) differentiate between subtitution edta titration and acid base EDTA titration

How many grams of oxygen are required to react with 32.5 g of lead(II) sulfide?

Normal water contains isotope of hydrogen 3H, tritium. It has a half-life of 12.3 years.
Determine the age of a bottle of wine whose 3H radiations is about 1/10 that present in
new wine.

Hello.
We have made a Fe-Glycine and Fe-Salicylic Acid complexes in Lab.
There is a problem, after dehydration (letting it become dry in the air) , it becomes water insoluble.
Could you assist us?
What should we do?

In 0.25 liters of solution contains 2.3 gm of non-electrolite at 17°c and osmotic pressure is 488.2kPa. Find molecular weight of this non-electrolite solution.

What property was used by Mendeleev to classify the elements?

A gas X is collected over water at 17C & 750 mm pressure.If the volume of the gas colected is 50 cc,calculate the volume of a dry gas at STP .

Among the following, the compound that is both are diamagnetic and colored is- 1) K2Cr2O7 (2) (NH4)2 [TiCl6] (3) VOSO4 (4)K3[Cu(CN)4] ((please solve with details ))

Equilibrium involving SO2(g), O2(g) & SO3(g) is important in sulfuric acid production. When a 0.0200 mol sample of SO3 is introduced into an evacuated 1.52 L vessel at 900 K, 0.0142 mol, SO3 is found to be present at equilibrium. calculate the value of Kp for the dissociation of SO3(g) at 900 K?