The chemical formula for hydrogen bromide is HBr. A chemist measured the amount of hydrogen bromide produced during an experiment. She finds that 5.9 g of hydrogen bromide is produced. Calculate the number of moles of hydrogen bromide produced. Be sure your answer has the correct number of significant digits. 477. mol X S
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.
Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro number. The value of the Avogadro number is 6.022x1023. The mass of one mole of a substance is known as the molar mass.
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