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- a) b) Br OH OH NHPh OH +EAtoms in Element 1 Atoms in Element 2 Atoms in Element 3 Atoms in Element 4 Total Atoms in Molecule Total Elements in Molecule Molecule 2 2H20 4 3CO2 3 6. 9H3PO4 27 36 72 0. 6. 1 20 4 12 20 3. 5Bas(PO4)2 15 10 40 40 105 4 2(NH2S 16 22 4Fes(SOaa 12 12 36 60 3AI(HCO.)a 3 9. 27 48 12 6. 24 42 4 10M9SO. 10 10 40 60 5NaPO. 15 5 20 60 3 7M93(PO4)2 21 14 56 91 8(NH.)PO. 24 96 8 32 160 4 4NaHCO, 4 4 12 9KCIO, 9. 9. 27 45 3 2Ca(CIO.)2 2 4 12 18 3 12Ca (PO4)2 11Ca(NO3)2 7AI(OH). 24You are told by your instructor to go to the stock room and find a bottle of the chemical K3Cl. Does such a compund exist?
- In drawing Lewis structures, we learn that a hydrogen atom forms only one bond in a covalent compound. Why?Joseph Priestly prepared oxygen in 1774 by heating red mercury(II) oxide with sunlight focused through a lens. How much heat is required to decompose exactly 1 mole of red HgO(s) to Hg(l) and O2(g) under standard conditions?Lead poisoning is a serious condition resulting from the ingestion of lead in food, water, or other environmental sources. It affects the central nervous system, leading to a variety of symptoms such as distractibility, lethargy, and loss of motor coordination. Lead poisoning is treated with chelating agents, substances that bind to metal ions, allowing them to be eliminated in the urine. A modern chelating agent used for this purpose is succimer (C4H6O4S2). Suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning. What minimum mass of succimer (in mg) is needed to bind all of the lead in a patient’s bloodstream? Assume that patient blood lead levels are 45 mg/dL, that total blood volume is 5.0 L, and that 1 mol of succimer binds 1 mol of lead.
- Balance the cquation C,H18() + 0>(g)→ CO,(g) + H;O(g) CO,(g) + H,0(g)Aluminum nitrate + potassium bromideLead poisoning is a serious condition resulting from the ingestion of lead in food, water, or other environmental sources. It affects the central nervous system, leading to a variety of symptoms such as distractibility, lethargy, and loss of motor coordination. Lead poisoning is treated with chelating agents, substances that bind to metal ions, allowing it to be eliminated in the urine. A modern chelating agent used for this purpose is succimer (C4H6O4S2). Suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning. What minimum mass of succimer (in mgmg) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 37 μg/dL, that total blood volume is 5.0 L, and that one mole of succimer binds one mole of lead.
- Lead poisoning is a serious condition resulting from the ingestion of lead in food, water, or other environmental sources. It affects the central nervous system, leading to a variety of symptoms such as distractibility, lethargy, and loss of motor coordination. Lead poisoning is treated with chelating agents, substances that bind to metal ions, allowing it to be eliminated in the urine. A modern chelating agent used for this purpose is succimer (C4H6O4S2)(C4H6O4S2). Suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning. What minimum mass of succimer (in mg) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 38 μg/dL , that total blood volume is 5.0 L, and that one mole of succimer binds one mole of lead. Express your answer using two significant figures. mC4H6O4S2 = mgA sample weighing 3.011 g is a mixture of Fe2O3 (molar mass = 159.69 g/mol) and Al2O3 (molar mass = 101.96 g/mol). When heat and a stream of H2 gas is applied to the sample, the Fe2O3 reacts to form metallic Fe and H2O(g). The Al2O3 does not react. If the sample residue (the solid species remaining after the reaction) weighs 2.598 g, what is the mass fraction of Fe2O3 in the original sample?Peroxyacetył nitrate (PAN) is one of the prime irritants in photochemical smog. It has the formula CH;COOONO, with the following structure: H;C-C 0-0-NO,