6. A sample containing only CaCO3 and M9CO, is ignited to Cao and MgO. The mixture of oxidesweighs exactly half as much as the original sample. Calculate the percentages of CaCO3 andM9CO3 in the sample.7. A sílicate ore contains 12.00% Na,0 and weighs 0.5000 gram. On analysis by the J.L. Smithmethod, the sample yielded 0.1500 g of a mixture of NaCl + KA. What weight of K2PtCl, wasobtained from the mixture of chlorides?

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nixture of Oxides 6. A sample containing only CaCO3 and M9CO3 is ignited to CaO and MgO. weighs exactly half as much as the original sample. Calculate the percentages of CaCO3 and M9CO, in the sample.

nixture of Oxides 6. A sample containing only CaCO3 and M9CO3 is ignited to CaO and MgO. weighs exactly half as much as the original sample. Calculate the percentages of CaCO3 and M9CO, in the sample.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

6. A sample containing only CaCO3 and M9CO, is ignited to Cao and MgO. The mixture of oxides
weighs exactly half as much as the original sample. Calculate the percentages of CaCO3 and
M9CO3 in the sample.
7. A sílicate ore contains 12.00% Na,0 and weighs 0.5000 gram. On analysis by the J.L. Smith
method, the sample yielded 0.1500 g of a mixture of NaCl + KA. What weight of K2PtCl, was
obtained from the mixture of chlorides?

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