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 /…

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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.

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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: 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…

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

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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: Your lab mate left you a present in the form of a 500 mL volumetric flask filled with 50.00 mM…

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

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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

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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

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

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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.

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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: 2) For a separate job, you are asked to assemble a number of tricycles by attaching wheels to the…

A: No. Of complete frames=70 No.of rear wheels=123 No. Of front wheels=74 For 1 complete tricycle, no.…