An alcohol solution was prepared by adding enough water to 35. 0 mL of the alcohol to make a total volume of 80.0 mL of the mixture. What is the % alcohol by volume?   A 50.0 mL portion of 70.0% (by volume) alcohol solution was mixed with 50.0 mL of water. What is the new % alcohol by volume?

Q: Sodium carbonate (Na2 CO3) is used to neutralize the sulfuric acid spill. How many kilograms of…

A: The reaction between sodium carbonate and sulfuric acid is as follows, The given mass of sulfuric…

Q: 3. When solutions containing 1.0000 g of BaCl2 and 1.0000 g of NazSO4 were mixed, solid BaSO4…

A: Note - Since you have posted a question with multiple sub-parts, we are supposed to solve only the…

Q: The solubility of CoCl2 in water is 52.9 g of CoCl2 per 100 g of water. 105.3 g of CoCl2 are added…

A: Given: The solubility of CoCl2 in water is 52.9 g of CoCl2 per 100 g of water. 105.3 g of CoCl2 are…

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A: Given, Total volume of decolorizer desired = 300 mL

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A: Molarity (M) :-  The number of moles of solute dissolved in one litre of solution is known as…

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A:

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A:

Q: A chemist prepares a solution of sodium hyposulfate Na2S2O3 by weighing out 206.0g of sodium…

A: Given that, 206.0 g of sodium hyposulfate, Na2S2O3 dissolved in 300 mL of volumetric flask filled…

Q: What is the freezing point of 0.0225 m aqueous calcium chloride, CaCl2? Use the formula for the salt…

A:

Q: A laboratory procedure calls for making 510.0 mL of a 1.2 M KNO3 solution. Part A How much KNO3 in…

A: Given, Molarity of solution = 1.2 M volume of solution = 510.0 mL = 0.51 L we are asked to calculate…

Q: If you had to prepare a 0.200 M HCl solution from 17.0 mL of a 2.60 M HCl stock solution, to what…

A:

Q: What is the concentration, in mass %, of a solution made by mixing 35.89 g of NaCl with 253.4 mL of…

A: The mass % can be calculated by the ratio between the mass of the solute to the total mass of the…

Q: If 122 mL of allM glucose solution is diluted to 550.0 mL, what is the molarity of the diluted…

A:

Q: 1. Perform the following calculations and give the answer rounded to the correct number of…

A:

Q: Determine the amount of potassium chloride in each solution. 18.5 g of a solution containing 1.08…

A: Since, mass%=mass of solutemass of solution×100

Q: In an experiment involving the extraction of essential oils from a plant, 7.5 mL of benzene (C6H6,…

A: Volume of benzene = 7.5 mL Density of Benzene = 0.8765 g/mL     Mass of Benzene = Volume * Density…

Q: Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person…

A: Solution :       The molarity of the solution is defined as the number of moles of solute dissolved…

Q: An aqueous solution of sodium hydroxide, NaOH , is made by dissolving 15.6 grams of sodium hydroxide…

A: The question is based on the concept of solutions. molarity is a method of expressing concentration…

Q: 3. When solutions containing 1.0000 g of BaCl2 and 1.0000 g of NazSO4 were mixed, solid BaSO4…

A: Given that : The mass of BaCl2 used = 1.000 g The mass of Na2SO4 used = 1.000 g The molar mass of…

Q: Be sure to answer all parts. Fluoridation is the process of adding fluorine compounds to drinking…

A: Amount of water (in grams ) consumed by 50,000 people in an year is determined.1 year = 365 days

Q: If you made a solution of 1.5 ppm of Pb in 1.25 mL of nitric acid, from 0.25 mL of a stock solution.…

A: Given information: Concentration of solution (M1) = 1.5 ppm Volume of solution (V1) = 1.25 mL Volume…

Q: When 35.0 grams of KBr are dissolved in 245 grams of water, an expression for the resulting solution…

A: Answer is  a) 35.0 g KBR per 280 g solution

Q: mol A chemist makes 760. mL of potassium permanganate (KMNO,) working solution by adding distilled…

A: The given problem relates to stock dilution, so we can use the below relation to calculate the…

Q: When answering this problem, report the answer with the appropriate number of significant figures.…

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Q: Lipitor, a pharmaceutical drug that has been shown to lower "bad" cholesterol levels while raising…

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

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Q: A chemist adds 75.0 mL of a 3.20 g/dL potassium dichromate (K,Cr,0, solution to a flask. Calculate…

A: Concentration of potassium dichromate(K2Cr2O7) = 3.20g/dL Volume of the solution = 75.0ml = 75.0ml ×…

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: Answer

Q: A chemist wants to make 5.0 LL of a 0.330 MCaCl2MCaCl2 solution. What mass of CaCl2CaCl2 (in gg)…

A: Given  Molarity of CaCl2 =  0.330 M                               = 0.330 mole/Liter Volume of…

Q: IV (intravenous) solutions are mixtures of sugars, salts and other aqueous solutes fed directly to a…

A: We have given that  Concentration of glucose = 5% by mass   Given that : density of Solution : 1g/mL…

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Q: A chemist mixes 81.1 g of water with 72.2 g of methanol and 28.4 of acetic acid. Calculate the…

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Q: The physician has ordered 1.0 gg of tetracycline to be given every six hours to a patient. If your…

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Q: The concentration of carbon monoxide (CO), a common air pollutant, is found in a room to be 5.7 x…

A: The volume of the room is calculated as following,

Q: Be sure to answer all parts. Fluoridation is the process of adding fluorine compounds to drinking…

A: One person consumes 140gallon  1 gallon is equal to 3.785L  The density of water = 1g/ml which will…

Q: When 50. mL of 5.4 M NaCl is diluted to a final volume of 300. mL, what is the concentration (M) of…

A: We know that,  V1S1 = V2S2 Where, V = Volume  S = strength or concentration

Q: If you dissolve 24.4 g of NaCl in 251 g of water and generate a solution that has a density of 1.10…

A: Molarity of a solution is given by,

Q: What is the %v/v of a solution made from 141.1 g of ethylene glycol (density is 1.11 g/mL) in water…

A: Given: Mass of ethylene glycol is 141.1 g Density of ethylene glycol is 1.11 g/mL. Density of water…

Q: A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the…

A: At first 10 mL of original solution is taken in 250 mL flask and the rest 240 mL of water is added…

Q: A chardonnay wine is 13.5 percent by mass alcohol. If we consume 24 fluid oz of wine, and the…

A: Percent by mass alcohol = 13.5 % Volume of wine = 24 oz 1 oz = 29.57 mL 24 oz = 709.76 mL or 0.70976…

Q: When you perform the following operations, how many signifcant figures should your answer have?…

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Q: The concentration of an HCl solution is 0.567 g HCl/g of HCl solution (the solution containing BOTH…

A: Given the concentration of an HCl solution is 0.567 g HCl/g of the solution it means that 1 g of HCl…

Q: Assuming volumes are additive, how much water (in mL) should be added to 20 mL of a 2.48 M solution…

A: Provided initial volume (V1)=20 ml Initial molarity (M1)=2.48M Final molarity (M2)=0.250M Number of…

Q: Please show all your work for this question using Dimensional Analysis. Sodium Chloride and Bromine…

A: Given Mass of Cl2 = 71.1 g Mass of NaBr = 82.7 g Standard values  Molar mass of Cl2 = 71 g/mol Molar…

Q: essential oils from a plant, 7.5 mL of benzene (C6H6, 78.11 g/mol) was mixed with 25.00 mL of hexane…

A:

Q: Give the mass of the solute and mass of the solvent for 1.30 LL of a solution that is 17.0 %% of…

A: Given, % by mass of Pb(NO3)2 = 17.0 % Volume of solution = 1.30 L = 1300 mL     (1 L = 1000 mL)…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.