An 18 carat white gold is made by dissolving 10.1397 g of Copper, 11.5554 g of Silver, and 63.1694 g of Palladium in 273.3155 g of Gold. What is the percent composition by mass of Palladium in the metal alloy? Take note of the following values: • Density Ag = 10.5 g/mL • Au = 19.3 g/mL Cu = 8.94 g/mL ● Pd = 12.0 g/mL • Molar Mass • Ag = 107.87 g/mol Au 196.97 g/mol ● = Cu = 63.55 g/mol • Pd = 106.42 g/mol Round your answer to 3 decimal places.
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.
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