Inorganic Chemistry Answers

The minimum amount of air required for the complete combustion of 1L of water gas is 2.8L at NTP. Assuming that 20% excess air is used for the actual composition, calculate the volume of air used at 740 mm pressure and 25°C

10cm3, 0.12 mol/dm3 of sodium sulfite acidified with reagent hydrochloric acid solution. Then we add 10 cm3 10g/dm3 mass concentration of hydrogen sulfide solution. How many grams of sulfur precipitates?

The boiling points of the isomers of C5H12 are
B Pt (K)
pentane 309.2
2-methylbutane 301.0
2,2-dimethylpropane 282.6
a) What are the forces attracting pentane molecules to their neighbours in liquid
pentane?
b) Explain why the boiling point becomes lower as the isomer becomes more
branched

What physical states (solid, liquid or gas) would you expect the following alkanes
to exist in at room temperature? In each case, assume we are talking about the
“straight chain” isomer.
a) C8H18 b) C4H10 c) C12H26 d) C19H40 e) C15H32

What are coordination compounds

You and your partner take melting points of the sample. You observe a melting point of 101-107oC, while your partner observe a value of 110-112oC. Explain how you get two different values with exactly the same sample.

arrange the following in order of increasing basicity (weakest first?
(CH3CH2)3N (CH3)3N (CH3CH2CH2CH2)3N

I've got two questions. One. How is gamma butyrolactone made. And how can a person breakdown an oxyneo 40mg for injection.

What principles or rules are violated in the following electronic configuration \\(1s^{2}2s^{3}\\)?

1. A 50 mL sample of water contains 500 ppm of dissolved oxygen (DO). The water sample is diluted to 100 mL. After 5days of incubation the DO value of the water sample reduces to 400 ppm. Calculate the BOD of the water sample.
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