O CHEMICAL REACTIONS Writing the net equation for a sequence of reactions Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite mineral rhodochrosite, involves a two-step process. In the first step, manganese (II) carbonate and oxygen react to form manganese (IV) oxide and carbon dioxide: 2 MNCO3(s)+O,(9)→2 MnO,(s)+2 CO,(g) In the second step, manganese (IV) oxide and aluminum react to form manganese and aluminum oxide: 3 MnO2(s)+4 Al(s)→3 Mn(s)+2 Al,O3(s) Write the net chemical equation for the production of manganese from manganese (II) carbonate, oxygen and aluminum. Be sure your equation is balanced.

Q: (ii) Calculate the mg/l, Molarity for 200 mg/l as CaCO3 of Na2CO3. molant니

A:        Amount of Na2CO3 = 200 mg/L Equivalents of CaCO3 = Amount of Na2CO3 * 100Mol. weight of Na2CO...

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A:

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A:

Q: A certain weak base has a Kp of 8.60 × 10-'. What concentration of this base will produce a pH of 10...

A:   Kb = 8.40x10-7 pH= 10.37 Concentration of base=?  

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A:

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A: We have to predict the pH of the solution.  

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A: IUPAC name is the preferred way to name a chemical compound.

Q: 3

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A: Why is there a warning that all glassware must be dry when preparing an equilibrium solution?

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".