Inorganic Chemistry Answers

If plum pudding model of atom would be valid, then producing cathode ray and electricity would be a myth”

If plum pudding model of atom would be valid, then producing cathode ray and electricity would be a myth”

Five standard chromium(VI) solutions were prepared through serial dilution technique with corresponding absorbance readings at 540 nm wavelength as follows:

Concentration Absorbance

A₁=0.650            C₁=1.9  ppm

A₂=0.712            C₂=4.0  ppm

A₃=1.370            C₃=6.0  ppm

A₄=2.050            C₄=8.0  ppm

A₅=3.423            C₅=10.0 ppm

The sample solution gives an average absorbance reading of 0.713. What is then the concentration of chromium (VI) ion in the sample?

Water sample A has a turbidity reading of 555 NTU. If a 50 ppm standard has a turbidity reading of 50 NTU, what is the concentration of the analyte in A that causes the water to be turbid?

A water sample has been analyzed for phosphate using UVVS method at 662 nm wavelength. The molar absorptivity of the standard phosphate gives a value of 1.03 x 10³ L/mol.cm and an average absorbance reading of 0.431 for the water sample. Is the water from where the sample is taken safe for human drinking? 

A water sample was run through the colorimetric procedure for the analysis of nitrate, giving 65.0% transmittance. A sample containing 1.00 ppm nitrate run through the exactly the same/identical procedure gave 24.6% transmittance. What was the concentration of nitrate in the first sample?

Sulfuryl chloride is an inorganic compound with the formula SO2Cl2. It is a colourless liquid with a pungent odour. A quantity of 5.75 g of SO2Cl2 was placed in a 3.00 L flask. At 375 °C, there is 0.035 mole of Cl2 present. SO2Cl2(g) SO2(g) + Cl2(g) .calculate kc and kp

How to change the color of stannous chloride without losing its reflecting properties?

How to change the color of sncl2 solution without losing its reflecting properties?

Using the VESPR model,predict the shape of XeO4 molecule