A 100 mL solution of theobromine in water is made, and the solution has a density of 1.16 g/mL. If water has a density of 1g/mL, how many molecules of theobromine are in 1 mL of the solution?

Q: The common pain relievers – aspirin (C9H8O4), acetaminophen (C8H9NO2), and naproxen sodium…

A: To solve this question, first, we need to find out the molar masses of the given chemical compounds.…

Q: Using the structures of the reactants and products shown in the chemical reaction pictures.

A: Aspirin  (acetyl salicylic acid)   It is used for Pain killer,reduce inflammation and reduce fever…

Q: The use of freons is being phased out because of the damage these compounds do to the stratospheric…

A: a.

Q: -1 A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a…

A: Concentration of salt in Lake Parsons was found to be 25.6 g L-1. The average concentration of salts…

Q: Gaseous ethane (CH₂CH3) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide (CO₂)…

A: Given,  The mass of ethane (CH3 CH3 ) = 2.1 g.  The mass of oxygen O2 = 9.80 g.  The maximum amount…

Q: 33 34 = 35 = 36 37 38 39 40 = 41 = 42 = 43 = 44 Aqueous hydrochloric acid (HCI) reacts with solid…

A:

Q: of

A: moles= given mass /molecular mass We have 0.730 mole of CS2 Molecular mass =76.13g/mol Mass of CS2=…

Q: Compound A has a density of 4.5 g/cm3. Suppose you plan to mix 197 g Element A (18.9 g/cm3) with…

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Q: One relatively common compound used in plastics manufacturing is composed of 24.3% carbon, 4.1%…

A: Given that One relatively common compound used in plastics manufacturing is composed of 24.3%…

Q: 8. KI 9. NaCI 10. Mg Cl2 11. Na;N

A: 8) KI : In the compound we have metal cation K+ from s block and I- anion. Since in the naming of…

Q: Determine the mol H2O/mol CaSO4 if you have the following data to two decimal places (MM H2O =18.02…

A: In this problem, we were asked to determine the mol H2O/mol CaSO4 ratio given the masses of water…

Q: Copper carbonate hydrate produces 1 mole of water (MM = 18.015 g/mol) for every mole of solid…

A: Molar mass of solid product = 79.545 g/molmass of solid product produced = 3.327 gMolar ratio,water…

Q: n. is the total mass of solid recovered? g is the percent composition of naphthalene in the initial…

A: A) 1.661gm B)21.06% C)15.73%

Q: You wish to prepare 217 grams of 19.7 % MnCl2. You will need_________________  grams of…

A: Mass of mgcl2= 42.74gm Voulme of H2O= 80.3ml

Q: A chemist has two different gasohol mixtures available. One contains 20% alcohol and the other 12%…

A:

Q: A sunscreen preparation contains 2.50% by mass benzyl salicylate (2.50g benzyl salicylate/100g…

A: Given : weight of benzyl salicylate = 2.50 g in 100 g sunscreen  And one tube contains 4 ounces of…

Q: 7) How many kilograms is a 27 oz. bag of M&M's? 8) How many kilometers can a car travel on 19…

A: Answer 7) 1 oz = 0.02835 kg 27 oz  =27*0.02835 kg  = 0.76545 kg so answer is 0.77 kg   Answer 8) 1…

Q: Many home barbecues are fueled with propane gas (C3H8). What mass of carbon dioxide is produced upon…

A: Given : Volume of propane = 14.5 L = 14500 mL                                             (since 1 L…

Q: A chemist adds 365.0 mL of a 2.1 mol/L nickel(II) chloride (NiCl,) solution to a reaction flask.…

A: Molarity is the moles of substance present per unit volume. Molarity = moles of solute / volume By…

Q: Calculate the number of carbon atoms in 3.884 gallons of octane, Cg H18 (1 gallon number of carbon…

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Q: How many moles are there in 6.18 kg NaCl?

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Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. How many molecules of C₆H₈O₆ does a Vitamin C…

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Q: 1. Convert 25.2 g into mg. (1000 mg = 1 g) 2. Convert 3 x 105 g into kg. (1000 g = 1 kg) 3. What is…

A: Since you have posted multiple questions, we are entitled to answer the first three only.

Q: Mercury and bromine will react with each other to produce mercury (II) bromide:What mass of HgBr2(s)…

A: The Balanced chemical reaction is : Hg (l) +Br2 (l)= HgBr2(s) Here  1 mol of Hg reacts with 1 mol of…

Q: Cephalexin is a semisynthetic cephalosporin antibacterial drug intended for oral administration.…

A:

Q: O Chemical Reactions Using molarity to find solute mass and solution volume 0/3 Bi A chemist adds…

A: Step 1: Calculation of moles of sodium thiosulfateGiven,molarity of sodium thiosulfate solution =…

Q: Which of the following is an incorrect conversion unit for magnesium oxide, MgO?     a)  6.02 x…

A: MgO has a molecular mass of 40.3 g/mol. It can be written in different conversion units according to…

Q: A beaker contains 70 mL of water. How many molecules of water does this beaker contain? (hint: the…

A: Given: The volume of water = 70 mL The density of water = 1 g/mL Standard data: The molar mass of…

Q: complete reaction

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Q: A sample of ammonium carbonate (MM = 96.09 g/mol) was found to contain 7.6 x 1023 AMU of N. How many…

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Q: 13) 5.0 x 1024 moecules S, Clu →?mores S

A:

Q: 7. (optional) A student found the mass of a 250-mL beaker to be 110.546 g. After touching the beaker…

A: Given : mass of beaker before touching=110.546 g  After touching = 110.547 g  Tip : one mole = 6.022…

Q: Vitamin C, an antioxidant present in citrus fruits, contains only C, H, and O. Combustion of 10.0 g…

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Q: Equivalent weight of Al(OH)3 is а. 26 g O b. 27 g С. 78 д O d. 39 g

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Q: The chemical formula for lithium hydride is LiH. A chemist measured the amount of lithium hydride…

A: Detail mathematical calculation is shown below

Q: If each of the 100 million automobiles contains 1.3 kg of CFC−12 and leaks 29 % of its CFC−12 into…

A: Given : Mass of CFC-12 in each automobile = 1.3 Kg Mass percent of CFC-12 that leaked per year = 29…

Q: An air conditioner compressor contains pure CClF3, also known as the refrigerant R-13. CClF3 has a…

A: We know that, density can be expressed as the mass per unit volume, i.e.…

Q: = O STOICHIOMETRY Limiting reactants Aqueous hydrobromic acid (HBr) will react with solid sodium…

A: First calculate the number of moles for both reactants. Use mol to mol ratio to calculate the number…

Q: The combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium sulfate…

A: Given:  Combined mass of the flask, stopper, calcium chloride solution, test tube, and sodium…

Q: 1. What is the molecular formula for the unknown hydrate? 2. What is the percent mass of water in…

A: The molecular formula for the unknown hydrate is to be determined from the given experimental data.…

Q: What is the % by mass of water in your hydrated copper (II) sulphate? Mass of just anhydrous…

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Q: Aqueous sulfuric acid (H₂SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: To calculate the maximum mass of sodium sulfate (Na2SO4) that could be produced by the chemical…

Q: Typical household bleach sold in the store contains 0.89 M NaClO. How many grams of NaClO are in…

A:

Q: Safrole, one of the flavor molecules in sassafras, contains only C, H, and O. Combustion of 10.0 g…

A: Given that - Safrole contains only Carbon, Hydrogen and oxygen as constituent elements. On heating…

Q: What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is…

A: Mass of  sugar (solute) = 22.0 g Total mass if the solution = 370.0 g weight (w/w%) = ?

Q: A 0.05 g drop of water contains 2.78 x 10-3 mol of water. How many molecules of water are in one…

A: This problem is based mole concept.Here, we have to find out the number of molecules of water in one…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".