The compound 2,3−dimercaptopropanol (HSCH2CHSHCH2OH), commonly known as British anti-Lewisite (BAL), was developed during World War I as an antidote to arsenic-containing poison gas.   (a) If each BAL molecule binds one arsenic (As) atom, how many As atoms can be removed by 3.6 g of BAL?  Enter your answer in scientific notation.   (b) BAL can also be used to remove poisonous heavy metals like mercury (Hg) and lead (Pb). If each BAL binds one Hg atom, calculate the mass percent of Hg in a BAL-Hg complex. (An H atom is removed when a BAL molecule binds an Hg atom.) mass %

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Q: Write a balanced equation for the reaction of nitric acid, HNO3(aq), with magnesium hydroxide,…

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Q: What is the mass (in grams) of 5.03*10^22 molecules of CO2 molecules?

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Q: (a) How many moles of ammonium ions are in 0.393 g of ammonium carbonate? mol (b) What is the mass,…

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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.