A chemist adds  330.0mL  of a  1.5/molL  nickel(II) chloride  NiCl2  solution to a reaction flask. Calculate the mass in grams of nickel(II) chloride the chemist has added to the flask. Round your answer to  2  significant digits.

Q: The protocol for a given lab experiment specifies that you should prepare 100 mL of a 0.10 M (mol/L)…

A: The question is based on the concept of experimental chemistry. We have to identify the apparatus in…

Q: You have 615 ml of 4.69 M HCl.  Using a volumetric pipet, you take 288 ml of that solution and…

A: Interpretation: The final concentration of HCl after a series of dilution process has to be…

Q: If 30.0 mL of 0.150 M CaCl2 is added to 15.0 mL of 0.100 M AgNO3, what is the mass in grams of AgCl…

A: Here we are required to find the mass of AgCl precipitate formed

Q: A chemistry student weighs out 0.110 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: • Concentration = No.of MolesVolume• No.of Moles = Concentration x Volume•  No.of gram Equivalent =…

Q: An analytical chemist weighs out 0.344 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given: Mass of acid = 0.344 g Molarity of NaOH = 0.0700 M Volume of NaOH = 65.5 mL = 0.0655 L

Q: ind the molarity of a 40.0% by mass aqueous solution of sulfuric acid, H2SO4, for which the density…

A: The molarity is the concentration term which is defined as the number of moles of solute present in…

Q: A chemist prepares a solution of copper(II) sulfate CuSO4 by measuring out 7.84g of copper(II)…

A:

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A:

Q: Calculate the mass of precipitate (in g) produced when 75 mL of 6.00 mol/L sodium hydroxide solution…

A:

Q: A. Magnesium chloride has a formula of MgCl2 · 6H2O. What is its formula weight? B. You desire to…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A:

Q: Mass of Erlenmeyer flask: 25.52 g Mass of Erlenmeyer Flask + Calcium Hydroxide Solution (lime…

A: Mass of Ca(OH) 2 = 2.92 g Density of Ca(OH) 2= 1 g/ml As we know        Density = mass/ volume We…

Q: How many moles and numbers of ions of each type are present in the following aqueous solution? Give…

A: Moles of solution or ion is calculated using formula of molarity which is given as follows:-…

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

A: Given, Volume of Solution = 625 mL  W/V % of Sucrose = 36.0% Mass of sucrose = ?

Q: A 650 mL sodium bromide solution has a bromide ion concentration of 0.245 M. What is the mass (g) of…

A: Molarity is equal to the number of mole of solute that dissolved in per liter of solution. Its SI…

Q: 1.A solution of zinc nitrate is added to a solution of magnesium sulfate. 2.You make 1.000 LL of an…

A:

Q: A chemist adds 40.0 mL of a 0.083 mmol/L sodium thiosulfate (Na, S,0,) solution to a reaction flask.…

A:

Q: What is the molarity of a solution made by mixing 2.77 g of potassium hydroxide with enough water to…

A:

Q: A chemist adds 320.0mL of a 2.1 M calcium bromide (CaBr2) solution to a reaction flask. Calculate…

A: From the given volume and molarity of the solution, moles of calcium bromide can be calculated as

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Concentration: In chemistry strength of a particular solution can be measured by the following…

Q: 1) If 56.2 mL of BaCl2 solution is needed to precipitate all the sulfate ion in a 746 mg sample of…

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Q: mass in grams of aluminum chloride

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Q: In the lab, a student makes a solution of KOH by dissolving 52.0 grams of solid in 255 mL of water.…

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Q: grams of aspirin tablets are dissolved in water and titrated with the NaOH from an initial volume of…

A:

Q: A 15.2-g sample of sodium carbonate is added to a solution of acetic acid weighing 19.4 g. The two…

A: Soln

Q: A chemist adds  380.0mL  of a  1.9/molL  potassium iodide  KI  solution to a reaction flask.…

A:

Q: Aqueous solutions of 16.7% by mass hydrogen peroxide, H202 (molar mass =34.016 g mol1) are used to…

A: Given that: Mass percent of H2O2 = 16.7% Density of solution = 1.06 g/mL

Q: A chemistry student weighs out 0.212 g of lactic acid (HC,H,03) into a 250. mL volumetric flask and…

A: Given, mass of lactic acid = 0.212 g            volume of solution  250. mL            molarity of…

Q: When solutions of silver nitrate and sodium chloride are mixed, silver chloride precipitates out of…

A: Consider the given balanced equation is as follows; Reaction:       AgNO3aq     +    NaClaq      →…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Answer

Q: A 20.00 mL sample of 0.1015 M nitric acid is introduced into a flask, and water is added until the…

A:

Q: A concentrated perchloric acid solution is 69.8% HCIO4 by mass and its density is 1.68 g mL-1. What…

A: Using molarity formula and equation of dilution we can solve this problem.

Q: When solutions of silver nitrate and potassium chloride are mixed, silver chloride precipitates out…

A:

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

A:

Q: Calculate the molarity of a solution prepared by dissolving 12.50 grams of NaNO3 in 250. mL of…

A: Molarity is defined as the moles of solute present in one liter of solution.

Q: Symbols used in equations, together with the explanations of the symbols, are shown below. Which set…

A: Introduction: Given reaction is : H2O2(aq) ---> H2O(l) + O2(g) This reaction is decomposition of…

Q: What mass of solute  (in grams) is present in 303.6 mL of 2.28 M nitric acid solution? Enter only…

A:

Q: An analytical chemist weighs out 0.050 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: In an acid-base neutralization reaction, normality will be compared as the base is monobasic and the…

Q: A chemist adds 125.0 mL of a 0.183M potassium dichromate (K,Cr,O,) solution to a reaction flask.…

A: Mass of Potassium Dichromate can be calculated in the following way:

Q: 1. A stock potassium dichromate solution (K,Cr,0,; molar mass is 294.2 g/mol) is prepared for…

A: the solution of pottasium dichromate is given

Q: In the laboratory you dissolve 15.8 g of nickel(II) bromide in a volumetric flask and add water to a…

A: Answer:- This question is answered by using the simple concept of calculation of molarity of the…

Q: molarity of a solution made from 5.906 g sodium chloride (MM=58.44 g/mol) dissolved in water to a…

A:

Q: A chemist adds  230.0mL  of a  0.233 M potassium dichromate  K2Cr2O7  solution to a reaction…

A: Given : Concentration of K2Cr2O7 = 0.233 M And volume of solution used = 230.0 mL = 0.230 L…

Q: A chemist prepares a solution of potassium bromide    KBr    by measuring out  0.17g  of  KBr…

A: Given : Mass of KBr dissolved = 0.17 g Volume of final solution = 300 mL = 0.300 L…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Given: Mass of cylinder = 5.0 g. Mass of cylinder with thiosulfate = 61.167 g. And the volume of the…

Q: A chemist adds 195.0 mL of a 0.0685 mM barium acetate (Ba(C,H;02),) : solution to a reaction flask.…

A:

Q: You are given a dye stock solution which contains  0.200 g/L dye.  If you place 20.0 mL of stock in…

A: Given ,          Concentration of dye solution=0.200 gLit.            Also , 1 Lit=1000 ml   Since…

Q: A chemistry student weighs out 0.0960 g of phosphoric acid (H,PO4), a triprotic acid, into a 250. mL…

A: Given: Mass of H3PO4  = 0.0960 g Volume of H3PO4 solution = 250.0 mL = 0.250 L Molar mass of H3PO4 =…

Q: chemist prepares a solution of silver(I) nitrate AgNO3 by measuring out 6.4102 x 10^2 μmol of…

A: Molarity is defined as total number of solute dissolve in one litre of solution Molarity…

Q: An analytical chemist weighs out 0.264 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given data is as follows: The mass unknown diprotic acid = 0.264 g    The volume of water = 250 mL =…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Mass/Volume concentration is defined as mass of solute present per mL of solution. Concentration…

Q: 2 J 258.0 g What is the mass (in grams) of NaCl required to make 660 mL of a 0.8 M NaCl solution?…

A: Given information: Molarity of NaCl = 0.8 M Volume of solution = 660 mL

Q: Gravimetric analysis of a mixture gives the percentage of a pure substance (either element or…

A: Given data,Density of water=1.029g/mLVolume of water sample=250mLMass of filter paper=1.058 gMass of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.