Inorganic Chemistry Answers

0.5M KOH is one of the reagents needed in the qualitative determination of stimulant cathartic anthraquinone in plants. How many grams of KOH are required to prepare 1L solution? MW KOH = 56 g/mol

In analyzing the crude fiber content of a certain food, 0.313N NaOH is required. What is the mass of NaOH pellets needed to prepare 500ml of the solution? What is the molarity of the solution?

What is the molality of a 10% by mass NaCl solution when used in qualitative determination of
tannins in plants?

Which of the following reactions involve redox In each case where redox occurs state what has been oxidised and reduced
(a) NaOH +HCl --- NaCl +H2O

A research worker isolated an unknown compound from one of his reaction product. This compound was a volatile liquid with a boiling point of 65oC. A 0.134 g sample of the liquid was vaporized and the gas was collected. The temperature of the collecting chamber was kept at 98oC in order that liquefaction would not occur. After all the sample was vaporized, the volume of the gas was measured at 0.0532 l at 98oC and 737 mmHg. Calculate the molecular weight of the compound.​

How many moles of solute are there in 7.0 L of a 0.200 M NaCl(aq)? Report your answer with one decimal place.

Add 7.25 L and 875 cL . Reduce the result to milliliters

theory is/are…..
a) It fails to explain spectral properties of complexes
b) It fails to explain colour of complexes
c) It fails to explain tetragonal and distorted octahedral geometries
d) All of the above

What is the change of reaction when temperature decreases from 100°C to 70°c if the temperature coefficient is 2