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Inorganic Chemistry
10.0 of unknown metal was completely reacted with chlorine gas to yield(1.81x10^1) grams of the metal chloride. According to the law of conservation of mass, how many milliliters of chlorine reacted? Density of chlorine is 3.214g/L.
Inorganic Chemistry
Differentiate evaporation, distillation, filtration, decantation and crystalization from each other
Inorganic Chemistry
15cm3 of a gaseous hydrocarbon was mixed with 120cm3 of oxygen which was in excess. The mixture was exploded, and after cooling, the residual volume was 105cm3. On adding conc. KOH, the volume reduced to 75cm3. What's the molecular formular of the HC?
Inorganic Chemistry
Group 8 elements are referred to as noble gasses. [5]
(a) If any, which of the noble gas(es) react with fluorine? Why?
(b) Give a balanced reaction equation of any of the possible reactions in (a).
(a) If any, which of the noble gas(es) react with fluorine? Why?
(b) Give a balanced reaction equation of any of the possible reactions in (a).
Inorganic Chemistry
Oxygen is the most abundant element in the Earth’s crust.
(a) Give the formulae of the oxides formed by reacting oxygen with Ca, N, S and Zn. [2]
(b) Differentiate between basic and acidic oxides. [3]
(c) Classify the types of oxides represented by your answers in (a).
(a) Give the formulae of the oxides formed by reacting oxygen with Ca, N, S and Zn. [2]
(b) Differentiate between basic and acidic oxides. [3]
(c) Classify the types of oxides represented by your answers in (a).
Inorganic Chemistry
Barium hydroxide crystallises as one of several possible hydrates. A sample of barium hydroxide is analysed in order to determine its formula. 3.632 g of the sample was dissolved in water to make 250.0 mL of solution. 25.00 mL of this solution was titrated with 0.0987 M HCl, using methyl orange indicator. Titres of 23.26, 23.29 and 23.34 mL were obtained.
Determine the formula (that is, find the value of x) of the barium hydroxide sample.
Determine the formula (that is, find the value of x) of the barium hydroxide sample.
Inorganic Chemistry
Barium hydroxide crystallises as on elf several possible hydrates, Ba(OH)2. xH2O. A sample of barium hydroxide is analysed in order to determine its formula. 3.632g of the sample was dissolved in water to make 250.0mL of solution. 25.00mL of this solution was titrated with 0.0987 M HCl, using methyl orange indicator. T.26, 23.29 and 23.34 mL were obtained. Determine the formula (that is find the value of x) of the barium hydroxide sample.
Inorganic Chemistry
Explain by Newton’s laws, how a heavy ship floats on the water
Inorganic Chemistry
Oxygen is the most abundant element in the Earth’s crust.
(a) Give the formulae of the oxides formed by reacting oxygen with Ca, N, S and Zn.
(b) Differentiate between basic and acidic oxides.
(c) Classify the types of oxides represented by your answers in (a).
Inorganic Chemistry
6.1 By using the greater than sign (>), arrange the the following species in terms of ionization energy.
(a) Sc, Ti, V and Cr
(b) Mn2+, Mn4+ and Mn3+
(c) Be, Sr, Ca and Mg
6.2 Arrange the species in 6.1(b)-(c) in terms of atomic or ionic radii (use the > sign).
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#339914 on Dec 2023
#339914 on Dec 2023