(a)
Interpretation:
To calculate the mass of product obtained.
Concept introduction:
When Ca is heated in air, below reaction is take place.
Molar mass of Ca is
(b)
Interpretation:
To calculate the mass of
Concept introduction:
The mass of product formed from the starting Ca is differ from
(c)
Interpretation:
To calculate the mass percent of
Concept introduction:
To calculate the mass percent of
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EP GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
- Phosphorus occurs naturally in the form of fluorapatite, CaF2 3Ca3(PO4)2. The dot indicates 1 part CaF2 to 3 parts Ca3(PO4)2. This mineral is reacted with an aqueous solution of H2SO4 in the preparation of a fertilizer. The products are phosphoric acid, hydrogen fluoride, and gypsum, CaSO4 2H2O. Write the balanced equation describing this process.arrow_forwardPhosphate buffers are important in regulating the pH of intracellular fluids. If the concentration ratio of H2PO4/HPO42 in a sample of intracellular fluid is 1.1: 1, what is the pH of this sample of intracellular fluid? H2PO4(aq)HPO42(aq)+H+(aq)Ka=6.2108arrow_forwardWrite balanced chemical equations for the following reactions: (a) cadmium burned in air. (b) elemental cadmium added to a solution of hydrochloric acid. (c) cadmium hydroxide added to a solution of acetic acid, CH3CO2Harrow_forward
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