How many gallons of a 43% acid solution do we need to mix with                39 gallons of a 20% acid solution so that the resulting mixture is a 30% acid solution? Answer: __________gallons

Q: A chemist samples a river's water to measure the amount of fertilizer runoff from the area farms. In…

A: When a fixed mass of a substance is dissolved in a specified volume of the solvent results in the…

Q: An aqueous solution of ethyl alcohol is made by transferring 12.3 mL of liquid ethyl alcohol to a…

A: Since we know that  %(V/V) = (volume of solute /volume of solution )×100%

Q: 14 12 10 - 8 4 2 10 20 30 40 50 Volume of acid added (mL) Hd

A: The titration curve given is,

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A: Given- Weight of formic acid =0.0457g Volume volumetric flask=250mL Concentration of NaOH =0.1100 M…

Q: The quantity of 10% w/w/ sodium chloride solution that can be made from 0.5 av. lb of 18% w/w sodium…

A: We have 18% w/w/ sodium chloride solution.

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A: Volume of acid used in trial 1 and trial 2 is 12 mL and 14 mL respectively. Volume of NaOH used in…

Q: Part A: Determination of Densities of Pure Water and Calcium Chloride Solutions (1) Temperature of…

A: Concept used: Density = mass VolumeSpecific Gravity =Density of solutionDensity of reference

Q: Question 2 Solution 1: 2 mL of 1.50 M A is combined with 18 mL water. Solution 2: 5 mL of solution 1…

A:

Q: 1. For water available for domestic use, calcium carbonate concentrations cannot exceed 500mg/L. a)…

A: Parts per million  is calculated as :  Molarity = Molar Concentration =

Q: . What type of dilution does each tube represent? - Please place the dilution factor under each tube…

A: •Here given=>

Q: Using the stock solution above, the student made additional dilutions, with the final volumes below.…

A: [Fe(NO3)3] = 0.200 M [KSCN] = 0.00200 M Volume of  Fe(NO3)3 used = 9.60 mL millimoles of Fe(NO3)3 =…

Q: How many milligrams of strontium carbonate, SrCO3, will dissolve in 4.000 L of deionized water at…

A:

Q: 2 ml 1 ml 1 ml 1 ml STOCK solution colored- dye bottle 1 mg/ml A B C D E Volume of water 4ml 4ml 4ml…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the amount of…

Q: If 120 mL of a 10% stock solution is diluted to 240 mL, the final concentration of the solution is…

A:

Q: is the concentration of a solution made by diluting 85 mL of 6.0 M HCl to a final volume of 750 mL?…

A: Given Initial volume(V1) = 85mL.                               Initial concentration (M1)= 6 M.…

Q: For each of the following scenarios, determine if the error will cause the molarity of the…

A: For Error in molarity:- (A) 50ml water add instead of 25ml means solution gets more diluted hence…

Q: Standardization of Hydrochloric Acid Solution Answer the concentrations in 3 significant figure. The…

A: The balanced equation for the reaction of Na2CO3(aq) with HCl(aq) is: Na2CO3(aq) + 2HCl(aq) ---->…

Q: Macmillan Learning What is the concentration of a solution made by diluting 45 mL of 6.0 M HCl to a…

A: Given, HCl solution: before dilution Concentration of the solution (M1) = 6.0 M Volume of the…

Q: During lab, a student used a Mohr pipet to add the following solutions into a 25 mL volumetric…

A: According to the dilution formula, M1×V1=M2×V2

Q: on 1 3 pts Use the References to access important values if needed for this question. on 2 6 pts In…

A: Moles = molarity × volume (L)  Molarity = moles/ volume

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A: A (m/v)% solution is prepared by the mass of solute substance per unit volume of the solution and…

Q: Trial 1 Trial 2 Trial 3 Molarity NaOH Volume of vineqar 0.25 M 20.00 mL 20.00 mL 20.00 mL Volume of…

A: Acetic acid in vinegar can be titrated against NaOH.

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Q: Solubility of Ca(OH)2 in 0.10M KCI Answer the concentrations and solubility in 3 significant figure.…

A: Sparingly soluble salts are those which do not dissolve completely to form aqueous solution. There…

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Q: Determine which of the following steps show correct technique when using a 250.00 mL volumetric…

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Q: Use the dilution method to make a solution. In the laboratory, a student dilutes 25.6 mL of a 8.86 M…

A: Given data : Volume of stock solution(V1) = 25.5 mL Concentration of perchloric acid(c1) = 8.86 M…

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A: The amount of oxygen present in one liter of water in a dissolved state is called dissolved oxygen.…

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A: Given data is The w/w percentage of concentrated sulfuric acid in water = 96.5% SG (specific…

Q: Calculate the normality of a solution that contains 2.68 grams of H2S in 790mL of solution.…

A: Given reaction equation: H2S + 2NaOH = Na2S + 2H2O Amount of H2S w = 2.68 g Molar mass of H2S  = 34…

Q: What is the molarity of an aqueous solution that contains 0.072 g C2H.Oz per gram of solution. The…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: Chemicals                                           Amount Benzophenone…

A: In a chemical reaction the extent of progress of reaction depends on the limiting reactant. Complete…

Q: If 25 grams of methane, CH 4, and 30 g of ammonia, NH 3, are combined w/ excess oxygen, how much…

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Q: substance has a solubility of 12.5 g per 100 mL of solvent at 100 degrees celsius and 2.45 g per 100…

A: Given : solubility of substance at 100 °C = 12.5 g/100 ml  Solubility of substance at 10°C = 2.45…

Q: 1.How many mL of stock solution (50 mM KCl) will you use to prepare 25 mL of a 5X dilution? Round…

A: The concentration can be determined by the concentration equation. It is written as:Here C is the…

Q: Calculate the volume in milliliters of a 0.174M potassium dichromate solution that contains 75.0…

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Q: A lab group was supposed to make 12 mL of a 29% acid solution by mixing a 20% solution, a 27%…

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Q: What is the molarity of a concentrated solution of sulfuric acid with a specific gravity of 1.84 and…

A: Molarity is defined as the number of moles of solute per litre of solution. Molarity = Number of…

Q: What volume of a 0.144M calcium hydroxide solution is required to neutralize 16.7mL of a 0.284M…

A: Answer

Q: solution 2 were taken and added to a flask and 50 mL of Di water were added to the flask. This is…

A: To calculate concentration of each solution, at first  let us calculate the concentration in terms…

Q: A solution is made by dissolving 11.2 g of sodium sulfite, Na2SO3, in enough water to make exactly…

A: The number of moles (n) of Na2SO4 is calculated as shown below where 126.043 g/mol and m is the…

Q: A student needs a 15% hydrochloric acid solution for a chemistry lab. How much 20% hydrochloric acid…

A: Given: Concentration of HCl in final solution required = 15 % Concentration of stock solution 1 = 20…

Q: Based off information from the attachment, please help with #9 on second attachment

A: We have been asked to provide help with question #9. Final volume of isopropanol ice solution = 70ml…

Q: Express your answer with three significant digits. Do not include units! g/mol A sample solution has…

A: According to the question we have a sample of solution whose concentration is given which is, The…

Q: You have been hired to be a laboratory assistant to the chemistry department and are asked to…

A: Mass percent = (mass of solute/mass of solution)*100

Q: What is the molarity of a solution made by dissolving 12.711 g of potassium carbonate, K2CO3, in…

A:

Q: There is a/n _______________ in solubility as temperature goes up

A: Given sentence:There is a/n _______________ in solubility as temperature goes up We have to fill in…