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when 2.1g of a mixture Of KCLO3 and NaCl was thermally decomposed the mass of residue obtained was 1.62g. determine the mass of O2 liberated and calculate the mass if NaCl impurity in the original mixture
Copper (II) sulfide reacts with oxygen gas to produce copper (II) oxide and sulfur dioxide. What is the balanced equation? If 100.0 g of copper (II) sulfide and 56.0 g of oxygen are available, what mass of copper (II) oxide is formed? Identify the limiting reactant. Include balanced equation, molar mass values, dimensional analysis, and limiting reactant.
Aluminum reacts with oxygen. What is the balanced equation? If 1.295 g of aluminum reacts with 0.48 g of oxygen, how many grams of aluminum oxide are formed? Identify the limiting reactant. Include balanced equation, molar mass values, dimensional analysis, and limiting reactant.
20cm^3 of ethanoic acid were titrated with 0.100 moldm^-3 NaOH. At the end point of the reaction 21.0cm^3 of alkali were required.
Calculate the pH at Half equivalence I.e. the pH when 10.5cm^3 of the alkali had been added.
Calculate the pH of 0.100moldm^-3 propanoic acid
Write the balanced equation for the reaction between hydrochloric acid and magnesium. What mass of the magnesium product is formed when 133.77 g of hydrochloric acid reacts? Show work. Include Molar Mass Values and Dimensional Analysis.
If you react .994 grams of iron (III) oxide with aluminum, what mass of iron (Fe) will be produced?
Fe2O3 + Al ® Al2O3 + F
between CuCl and KCl which one is more covalent and why?
structural interpretation of metronidazole structure
The normality of a solution of H3PO4 is N/ 10. Its molarity will be
(a) M/5 (b) M/30 (c) M/10 (d) M/40
