Concept explainers
Interpretation:Mass law represented by the change should be illustrated
Concept introduction:Chemical compounds contain its constituent elements in a fixed ratio by mass and it is independent of its origin and the way of preparation, it is known as law of definite proportions.
For an isolated system, despite
If fixed mass of one component combine with different masses of second component to form more than one compound between them, then the ratios of masses of the second component that combine with the first component will be the ratios of simple whole numbers. This law is known as e law of multiple proportions.
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Principles of General Chemistry
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- A 2.540 g sample of an oxide of tin was heated in the air until the mass of the sample no longer changed, and 2.842 g of tin (IV) oxide (SnO2) was obtained as a result of the heating. b) What is the mass of tin in the final sample?arrow_forwardA fictitious element is composed of isotopes A and B with masses of 61.9887and 64.9846 amu, respectively. The atomic mass of the element is 64.52. Whatcan you conclude about the natural abundances of the two isotopes?(a) The natural abundance of isotope A must be greater than the naturalabundance of isotope B.(b) The natural abundance of isotope B must be greater than the naturalabundance of isotope A.(c) The natural abundances of both isotopes must be about equal.(d) Nothing can be concluded about the natural abundances of the twoisotopes from the given information.arrow_forwardHydrogen sulfide is composed of two elements: hydrogen and sulfur. In an experiment, 6.500 g of hydrogen sulfide is fully decomposed into its elements. (a) If 0.384 g of hydrogen is obtained in this experiment, how many grams of sulfur must be obtained? (b) What fundamental law does this experiment demonstrate?arrow_forward
- The element oxygen has three naturally occurring isotopes, with8, 9, and 10 neutrons in the nucleus, respectively. (a) Write thefull chemical symbols for these three isotopes. (b) Describethe similarities and differences between the three kinds ofatoms of oxygen.arrow_forwardThe element oxygen has three naturally occurring isotopes, with 8,9, and 10 neutrons in the nucleus, respectively. (a) write the full chemical symbols for these three isotopes. (b) Describe the similarities and differences between the three kinds of atoms of oxygen.arrow_forward(1. On the second floor of Kent Laboratory a chemistry student in 111B finds that 15.20 g of nitrogen will react with 17.37 g, 34.74 g, or 43.43 g of oxygen to form three different compounds: (a) Calculate the ratio of the mass of oxygen to the mass of nitrogen for each compound and (b) Explain briefly how the numbers in part (a) support the atomic theory.arrow_forward
- Magnesium has three isotopes with mass numbers 24, 25, and 26. (a) Write the complete chemical symbol (superscript andsubscript) for each. (b) How many neutrons are in an atom of each isotope?arrow_forwardAn element X has two common isotopes: X-57 and X-59. If the average atomic mass of element X is 58.876 amu, which isotope is more abundant?arrow_forwardThe following diagram represents a chemical reaction in which the red spheres are oxygen atoms and the blue spheres are nitrogen atoms. (a) Write the chemical formulas for the reactants and products. (b) Write a balanced equation for the reaction. (c) Is the diagram consistent with the law of conservation of mass?arrow_forward
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