Lewis dot structures for the following compounds. a) Br2 b) HCI c) CH4 d) NH3 e) H2S f) SIF4 (6 PF3 h) CO2 i) SO3 j) BF3

Q: A student prepares a 1.1 mM aqueous solution of acetic acid (CH₂CO₂H). Calculate the fraction of…

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Q: Prepare a solution of NaCl by accurately weighing approximately 1.45g of NaCl into a 100 mL beaker /…

A: Molality (m)=Moles of soluteMass of solvent in kg mol/kg Mass of NaCl added=1.45gMolar mass of…

Q: The main chemicals present in a cup of coffee are water, caffeine, and tannins (acidic polyphenols…

A: A question based on analytical separations that is to be accomplished.

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Q: (optional) Blue turquoise is an example of a hydrate mineral containing copper; the chemical formula…

A: Mass percentage of any component may be calculated as, Mass percentage = mass of the component total…

Q: A pound of plain M&M® candies contains 96 g fat, 320 g carbohydrate, and 21 g protein. Carbohydrate…

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Q: Is it physically possible to separate table salt, sodium chloride, NaCl (a white soiled that is…

A: Yes,it is possible to separate sugar and salt using physical methods .

Q: What mass of water (in grams) is produced by the complete combustion of 2.68 g of ethanol, C2H5OH?…

A: Burning of any hydrocarbon gives CO2 and water from the balance equation we can calculate it .

Q: Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when…

A: Number of glasses of Allura Red can be calculated based on the total milligrams of its required.

Q: Some cooks will tell you that they salt the water used to boil pasta because adding table salt…

A: Given : Elevation in boiling point of solution required = 5 oC And volume of water = 2 L = 2000 mL…

Q: Which of the following processes require(s) chemical methods?    Separating a heterogeneous mixture…

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Q: If you start with 135 mg of acetone, what mass of NaBH4 in mg do you need? To account for some of…

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Q: Lime is a term that includes calcium oxide (CaO, also called quicklime) and calcium hydroxide…

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Q: Suppose that you are doing an experiment as part of your Capstone Design Project. A glass vessel…

A: Initial vessel with fresh water = 100 ml Concentration of NaCl added = 1 g/ml Flow rate into the…

Q: A chemist prepares solution of calcium bromide (CaBr₂) by measuring out 0.511 kg of calcium bromide…

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Q: Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when…

A: Given: Each glass of drink contains = 8.8 mg Allura Red Person's body weight = 165 lbs To Calculate:…

Q: Think about any flavored beverage that is not colorless (tea, soda, sports drink). Suppose you share…

A: Considering the case of Tea. If the same beverage is divided into two glasses then it look exactly…

Q: Sodium chloride (NaCl) was isolated from SiO₂ and CaCO3 by dissolving it in distilled water. Calcium…

A: When the mixture containing sodium chloride (NaCl), silicon dioxide (SiO2), and calcium carbonate…

Q: Convert 3.97×1010 J to units of kcal.

A: By using relation between J and Kcal we can solve this problem. 3.97×1010J = 9.5 × 106 Kcal

Q: Since the pandemic has hit, more people are growing their own gardens and processing the fruits of…

A: Each quart jar requires = 6.05g alum So, 50 quart jars would require = 6.05*50 g = 302.5g alum %…

Q: Differentiate concentrated from diluted solution.

A: A solution is a homogeneous mixture of two or more components in which the particle size is smaller…

Q: A sample of 18.11 grams of sodium hydroxide is weighed out on a balance and prepared to a volume of…

A: Given: The mass of NaOH dissolved = 18.11 grams The volume of the solution = 2.00 x 102 mL We have…

Q: The liquid 1,2-dibromobenzene has a density of 1.98 g/mL at 20 °C. If a 2.61 kilogram sample of this…

A: In the given question ->Density(d) = 1.98 g/mlWeight of sample = 2.61 kg = 2.61 × 1000 gm = 2610…

Q: Macmillan Learning Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of…

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Q: Suppose you need a tank of oxygen that is 95% pure. Describe a process by which you could obtain…

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Q: A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the…

A: Given,  Volume of liquid (V)=0.741L Mass of liquid (M)= 523g And density of liquid =M÷V

Q: A chemist prepares a solution of mercury(I) chloride (Hg₂Cl₂) by measuring out 1.96 mg of mercury(1)…

A: The mass of mercury (I) chloride (Hg2Cl2) is 1.96 mg.The volume of the solution is 500. mL.To find…

Q: Complete and balance each of the following equations for gas-evolution reactions.…

A: HNO3 reacts with Na2SO3 to give NaNO3, SO2 and H2O.

Q: Manganese Sulfate +   Aluminum Phospate

A: Given incomplete reaction is :  Manganese Sulfate +   Aluminum Phosphate ------------> ?…

Q: Waste same waste container as waste hexane (C6H14). dichloromethane (CH₂Cl2) should be put into the

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Q: A sample of water is found to contain 0.012 ppm of Pb ions. Calculate the mass of lead ions per…

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Q: 7.62 x 10^6 J to kcal

A: We have to convert given quantity to kcal unit.

Q: A stoppered flask in your laboratory drawer is stamped by the manufacturer with the notation “TC 25…

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Q: Show that a phosphatidic acid is chiral, even though none of its fatty acids are chiral.Where is the…

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Q: Convert the following measurement. kg 4 5.4 x 10 g mol · L mol · dL

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Q: The liquid 3-chloro-1,1,1-trifluoropropane has a density of 1.33 g/mL at 20 °C. If a 2.12 kilogram…

A: Given:Density of liquid = 1.33 g/mL = 1330 g /L.Mass of liquid = 2.12 Kg = 2120 g.

Q: A bottle of drinking water is labeled 24 fluid ounces (710 mL).” What is the mass in milligrams of…

A: Given: Bottle has 24 ounces of water = 710 mL of water. And volume of water = 0.69 fluid ounces.

Q: How many liters of 0.250 M NaOH solution can be prepared from 10.0 g of NaOH?

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Q: Was there any physical change in the characteristics of trichloroethane when it was added to water?

A: Trichloroethane is micible in water. When it is added to water there is no any physical change.

Q: Gas Baron, the new SUV from US motors, features a 30 gallon (113.4 L) gas tank. assuming complete…

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Q: Can you actually write this out? It makes it much more difficult to read when it gets written out…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

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A: We have to calculate the percentage of Lake Parsons that has evaporated

Q: Constants | Periodic Table Coal is a fossil fuel made primarily of carbon, but it also contains…

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Q: Which of the following are mixtures? salt (NaCl) air (mostly N₂ and O₂) water (H₂O) salt water

A: A mixture is the substance which is made up of more than one constituents.  it has different…

Q: Calculate the Normality of Hcl of a solution that contains 45 g in 325 ml of water, knowing that the…

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Q: 8H2S(g) + 4O2(g) → 8H2O(g) + S8(g) If Δ[H2S]/Δt = -0.062 mol·L−1·s−1, find Δ[O2]/Δt. Express your…

A: The rate of the formation of the product or the rate of disappearance of the reactants is known as…

Q: . A concentrated perchloric acid solution is 65.8% HClO4 by mass and its density is 1.68 g mL−1.…

A: 65.8 g HClO4 in 100 g solution. Density = mass/volume  Volume of solution = 100/1.68 = 59.52 ml…