1) A 1.0-g sample of carbon dioxide ( CO2) is fully decomposed into its elements, yielding 0.273g of carbon and 0.727g of oxygen. What is the ration of the mass of O to C? 2) if a sample of a different compound decomposes into 0.429g of carbon and 0.571g of oxygen, what is it's ratio of the mass of O to C? According to daltons atomic theory, what is the empirical formula of the second compound ? 3) a chemist finds that 30.82g of nitrogen will react with 17.60, 35.20, 70.40, or 88.00g of oxygen to form four different compounds.a) Calculate the mass of oxygen per gram of nitrogen in each compound.b) How do the numbers in part a) support daltons atomic theory ?
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
1) A 1.0-g sample of carbon dioxide ( CO2) is fully decomposed into its elements, yielding 0.273g of carbon and 0.727g of oxygen. What is the ration of the mass of O to C?
2) if a sample of a different compound decomposes into 0.429g of carbon and 0.571g of oxygen, what is it's ratio of the mass of O to C? According to daltons atomic theory, what is the empirical formula of the second compound ?
3) a chemist finds that 30.82g of nitrogen will react with 17.60, 35.20, 70.40, or 88.00g of oxygen to form four different compounds.a) Calculate the mass of oxygen per gram of nitrogen in each compound.b) How do the numbers in part a) support daltons atomic theory ?
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