A chemist adds 30.0mL of a  3.8*10^−6/molL mercury(II) iodide HgI2 solution to a reaction flask. Calculate the micromoles of mercury(II) iodide the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

Q: Lindsay A chemist makes 530. mL of calcium bromide (CaBr,) working solution by adding distilled…

A: A stock solution is a concentrated solution that will be diluted to some lower concentration for…

Q: At a certain temperature, an aqueous solution is 38.0% H2SO4 by mass and has a density of 1.342…

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

Q: How many grams of sucrose are needed to make 915 mL of a 32.0% (w/v) sucrose solution? mass:   g…

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Q: The mass of solute per 100 ml of solution is abbreviated as (m/v). Mass is not technically the same…

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Q: If a 6.00% (w/v) citric acid solution contains 6.00 grams of citric acid in every 100.0 mL of the…

A:

Q: A chemist adds 70.0mL of a 2.40 x 10^−4 mol/L copper(II) fluoride (CuF2) solution to a reaction…

A: Given: The volume of copper(II) fluoride (CuF2) solution added = 70.0 mL The molarity of the…

Q: A chemistry student weighs out 45. g of an unknown solid compound X and adds it to 750. mL of disti…

A:

Q: An analytical chemist weighs out 0.083 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Mass of the unknown monoprotic acid, HA taken = 0.083 g Total volume of the HA solution prepared =…

Q: 5. In a flask, you heat a mixture of 735.4 g of sodium nitrate and 700.0 grams of water until all of…

A: Given that, Mass of sodium nitrate dissolved in 700 g hot water = 735.4 g Mass of sodium nitrate…

Q: a) State the number of significant figures in the following examples: i) 17.4 x 104 mg ii) 0.00650…

A: Given,

Q: two solvents A (d=0.859 g/mL) and B (d = 1.290 g/mL) are immiscible. When 12.0 mL of solution A is…

A: Density=1.0314g/ml

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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: Calculate the micromoles of mercury(I) chloride the chemist has added to the flask

A: Molarity = number of moles/volume of solution (in L)  Number of moles = Molarity × volume

Q: If we have a salt solution with a density of 1.2g/cm^3 and a metal bar with a density of 8.96g/cm^3,…

A: Given : density of salt solution = 1.2 g/cm3  Density of metal = 8.96 g/cm3  And mass of both = 100…

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: How many grams of sucrose are needed to make 625 mL of a 32.0% (w/v) sucrose solution?

A:

Q: An analytical chemist weighs out 0.109 g of an unknown triprotic acid into a 250 mL volumetric flask…

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Q: Julia needs 75 milliliters (mL) of 4.0 x 104 M sulfuric acid solution. She has access to the…

A: The Answer to the following question is given as -

Q: A 0.9% (weight in grams/volume in mL) solution of sodium phosphate is made by adding _______ grams…

A: 0.9% (weight in grams/volume in mL) solution of sodium phosphate is made by adding 18 grams of…

Q: Calculate the mass (in grams) of oxalic acid (H2C2O4) needed to make 100.0 mL of a 0.250 M solution.…

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Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 1.47 mg of zinc oxalate into…

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

A: It is given that,       Initial concentration of salt dissolved in        Lake…

Q: A chemist adds 410.0mL of a 4.8x10−5/mmolL mercury(II) iodide HgI2 solution to a reaction flask.…

A: Given, Volume of mercury (II) iodide = 410.0 mL       { number of significant figure = 4}…

Q: A chemist adds 165.0mL of a 0.224M potassium dichromate K2Cr2O7 solution to a reaction flask.…

A:

Q: Price the Prescription using the Professional Fee method. Rx Potassium chloride 40 mEq NaCl 30 mEq…

A: The professional fee is ₱35.00. The mass of KCl and NaCl in each mEq is 0.075 g and 0.058 g,…

Q: Assume household vinegar contains 5% acetic acid by weight and that the density of vinegar is the…

A: Solution Vinegar may be a bitter liquid consisting principally of carboxylic acid and water.…

Q: An analytical chemist weighs out 0.181 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Let the diprotic acid be H2A. The reaction between the diprotic acid and NaOH is shown as: H2A +…

Q: Before investigating the scene, the technician must dilute the luminol solution to a concentration…

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Q: A chemist adds 1.90L of a 0.106 M potassium dichromate K2Cr2O7 solution to a reaction flask.…

A: We have to predict the millimoles of chemical added.

Q: Fluoridation is the process of adding fluorine compounds to the drinking water. Fluoridated water…

A:

Q: An analytical chemist weighs out 0.280g of an unknown diprotic acid into a 250mL volumetric flask…

A: As per the data given in the question,Weight of unknown diprotic acid = 0.280 gVolume of solution…

Q: A chemist adds 195.0mL of a 1.5M barium acetate (Ba(C2H3O2)2) solution to a reaction flask.…

A: Molar mass of barium acetate = 255.43 g/mol

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: What is the final volume V2V2V_2 in milliliters when 0.732 LL of a 44.3 %% (m/v) solution is diluted…

A: Applying concept of formality F1M1 = F2M2

Q: A chemist adds 55.0 mL of a 1.4M barium acetate (Ba(C,H,0,)) solution to a reaction flask. Calculate…

A: Given, Volume of Barium Acetate = 55 mL = 0.055 L Molarity of Barium Acetate = 1.4M

Q: A certain organic compound O has a solubility in hexane of 0.780 –- at 10. °C. Calculate the…

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Q: Consider the table below: Compound Density Ether 0.8415 g/mL Dichloromethane 1.311 g/mL Water 1.00…

A: From the given data of densities of ether, dichloromethane and water – it is clear that density of…

Q: An analytical chemist weighs out 0.115 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given data,Mass of acid=0.115gMolarity of NaOH=0.070MVolume of NaOH=17.0mLVolume of flask=250mL

Q: 5. 8. 9. 10 11 12 13 An analytical chemist weighs out 0.033 g of an unknown monoprotic acid into a…

A:

Q: A chemist adds 280.0 mL of a 1.32M iron(III) bromide (FeBr,) solution to a reaction flask. Calculate…

A: Volume of FeBr3 added to the flask = 280 mL = 0.28 LMolarity of this FeBr3 = 1.32 M = 1.32 mol/L…

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: A chemistry student needs 35.00 g of butanoic acid for an experiment. He has available 1.5 kg of a…

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Q: 1. Twenty grams of potassium dichromate (K₂Cr₂O7) is dissolved in 150 mL of water. What is its…

A: Given: Mass of K2Cr2O7 = 20 g. Volume of solution = 150 mL = 0.150 L…

Q: A chemist adds 305.0 mL of a 0.41M barium chloride (BaCl₂) solution to a reaction flask. Calculate…

A: Given,  Volume of solution = 305.0 mL                                     = 0.305 L  Concentration…

Q: A chemist prepares a solution of copper(II) fluoride  CuF2  by weighing out  0.07319g  of…

A: Mass of copper(II) flouride = 0.07319 g  Volume of water = 500 ml = 0.5 L  Concentration of…

Q: How many liters of a 0.500  M  sucrose ( C12H22O11 ) solution contain 1.6  kg  of sucrose?…

A: We are given: concentration of sucrose = [sucrose] = 0.500 M Weight of sucrose = W = 1.6kg = 1600…

Q: The molecular weight of sucrose is 342 g mol-1. How many grams would you need to weigh out, to…

A: •GIVEN=Molecular weight of sucrose=342 gm/mol •Molarity=0.8 M •Volume=20 ml=0.02 Litre •*Firstly we…