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 %

Q: C. What is the mass (in grams) of 5.03 × 1022 molecules of CO2 molecules?

A: Number of molecules of any species is given by, => Number of molecules = moles X Avogadro's…

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

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A:

Q: If 5.00 moles of MgO were reacted with excess moles of P,Ojo, what mass of Mg(PO4)2 would be…

A: Number of moles of MgO = 5.0 moles

Q: A sample of hydrate was heated thoroughly. How many waters of hydration are there if the anhydrous…

A:

Q: What is the mass in grams of 0.626 cmol(+) of magnesium (Mg2+), where cmol(+) is the moles of charge…

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Q: What is the mass of 0.0157 eq carbonic acid?

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Q: Calculate the percentage by mass of the indicated element in the following compounds: (d) platinum…

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Q: Aspartame, C14H18N2O5, a low-calorie sweetener, is about 200 times sweeter than sugar. How many…

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Q: Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon (CFC) production was…

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Q: Acetaminophen, an analgesic and antipyreticdrug, has a molecular mass of 151.2 u and a masspercent…

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Q: A sample of glucose, C6H12O6, contains 1.250 x1021 carbonatoms. (a) How many atoms of hydrogen does…

A: a).

Q: A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of…

A: Given: Mixture of metal X and Z. And mass percent of X and Z in the mixture.

Q: 1. The number of ammonia (NH3) molecules present in 4.85 grams of NH3 is: 2.…

A:

Q: Consider the combustion of propane, C3H8 in oxygen gas, O2. a)What products will be produced? (give…

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Q: 2. The volume of the nucleus of a carbon atom is about 9.9 x 10-39 mL. The molar mass of carbon is…

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Q: When iridium-192 is used to treat cancer, a small cylindrical piece of 192Ir, a 0.6 mm in diameter…

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Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula C,H2n++…

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Q: 3N22SO4 # of molecules: # of elements:

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Q: How many molecules are there in 1,975.0 g of table sugar, sucrose, C12H22011?

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Q: A compound has a molar mass of 28.06 g. What is its chemical formula if carbon and hydrogen are…

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Q: What is the mass, in kilograms, of an Avogadro’s number ofpeople, if the average mass of a person is…

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Q: A tube of toothpaste contains 0.76 g of sodium monofluorophosphate, Na2PO3F, in 100 mL. How…

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Q: A student prepares aspirin using 17.530 grams of salicylic acid (MW = 138 g/mol) and 5.00 mL of…

A: The balanced reaction is as follows:        C7H6O3    +    C4H6O3     →     C9H8O4      +…

Q: Which is the correct mass percentage of hydrogen in acetamide, C₂H₅NO?

A:

Q: An experiment in the lab requires 0.03 g of sodium chloride, which is a substance that is safe for…

A: I can dispose the exess NaCl by throwing it in to the basin .

Q: 2) What is the mass of 5.13 moles of Na2Cr2O7?

A: Solution First, we need to find out the molar mass of Na2Cr2O7 The molar mass of = (Number of atoms…

Q: A student prepares aspirin using 2.409 grams of salicylic acid (MW = 138 g/mol) and 5.71 mL of…

A:

Q: 4. a) How many particles ( b) What is the mass in grams of that salt? )are there in 1.25 moles of…

A: No. of particle = mol * NA     where NA is Avogadro number.

Q: The molecular formula of allicin, the compound responsiblefor the characteristic smell of garlic, is…

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Q: How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 145 mL of…

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Q: Can the relative amounts of the components of a mixture vary?Can the relative amounts of the…

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Q: Calculate the percentage by mass of the indicated element inthe following compounds: (a) carbon in…

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Q: In this question: "How many O atoms are in 24.34 g of sucrose, C12H22O11?" Why is the answer not 11,…

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Q: How do I calculate the number of molecules in 6.00 ml of acetic anhydride, C4H6O3, if the density of…

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Q: One of the hydrates of CoSO4 is cobalt(II) sulfate hexahydrate . A 71.1 gram sample of CoSO4 6 H2O…

A: Answer

Q: 2) If 28.9g of Lithium Nitride react, how many grams of Magnesium Carbonate are needed to react with…

A:

Q: Your doctor has diagnosed you as being anemic—that is, as having too little iron in your blood. At…

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Q: 5.2C23 molecules of hand sanitizer, ethanol (C,I IO ) is how many moles?

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Q: 2) How many grams of calcium chloride contains 4.08 x1024 ions of Cl?

A: Given that:  Ions of Cl- = 4.08×1024 Formula of calcium chloride = CaCl2

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A: We have to predict the molecular mass , moles , and compound delivering more iron atoms.

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.