A chemist prepares a solution of iron II bromide   FeBr2   by measuring out 17.mg of FeBr2 into a 50.mL volumetric flask and filling to the mark with distilled water.   Calculate the molarity of Br− anions in the chemist's solution.   Be sure your answer is rounded to the correct number of significant digits.

Q: A chemist wants to make 6.5 L of a 0.280M CaCl2 solution. What mass of CaCl2 (in g) should the…

A: Molarity of a solution is defined as the number of moles of solute present in one litre of the…

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: A chemistry student weighs out 0.152 g of ascorbic acid (H,C,H,O), a diprotic acid, into a 250. mL…

A: Here we first calculate molarity of ascorbic acid, then use total volume strength equation.

Q: A chemist prepares a solution of iron (II) chloride (FeCl₂) by measuring out 33. mg of FeCl₂ into a…

A: According to the question, The mass of the FeCl2 = 33 mg The volume of the solution = 50 mL   Find:…

Q: A chemistry student weighs out 0.127 g of chloroacetic acid (HCH2ClCO 2) into a 250. mL volumetric…

A: We have to calculate the volume of NaOH needed to reach equivalence point

Q: Calculate the molarity of each of the following solutions. Round each of your answers to 3…

A: The objective of the question is to calculate the molarity of each of the given solutions. Molarity…

Q: A chemist prepares a solution of silver(II) oxide (AgO) by measuring out 0.00926 µmol of silver(II)…

A:

Q: A chemist prepares a solution of aluminum chloride (AICI,) by weighing out 49.9 g of aluminum…

A: Given: grams of aluminum chloride = 49.9g Volume = 400mL The concentration value in g/dL is…

Q: (Zn(NO3)₂) by measuring out 100. g of zinc nitrate into a 150. mL volumetric flask and A chemist…

A:

Q: A chemist prepares a solution of silver(I) perchlorate (AgCIO4) by measuring out 817. μmol of…

A: Given, Moles of silver perchlorate = 817 μmol Volume = 450 mL

Q: The chemical name for Tums is calcium carbonate, CaCO3, is used to treat symptoms caused by too much…

A: Given: Mass of CaCO3 = 522.61 mg = 0.52261 g                                                 (Since…

Q: A chemistry student weighs out 0.150g of phosphoric acid H3PO4 , a triprotic acid, into a…

A: The 250 ml of solution is equal to 0.250 L. The concentration of phosphoric solution (M) is…

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

A: The amount of solute which is dissolved in given amount of solvent is known as concentration.

Q: A chemist adds 130.0 mL of a 3.9M silver perchlorate (AgCIO4) solution to a reaction flask.…

A: Volume of AgClO4 = 130.0 mL   = 0.13 L        ( 1 mL = 0.001 L)Molarity of AgClO4 = 3.9 mol/L…

Q: A solution of cobalt(II) chloride is analyzed, and the concentration of cobalt(II) ions is found to…

A: Given,  Concentration of cobalt(II) ions(Co2+) = 0.27 mol/L Concentration of Chloride ion (Cl^-1) =…

Q: At a certain temperature, an aqueous solution is 16.5% K2CO3 by mass and has a density of 1.149…

A: Given: density of solution = 1.149 g/cm3 Molar mass of K2CO3 = 138.205 g/mol Mass percent of…

Q: chemist prepares a solution of nickel(II) chloride NiCl2 by measuring out ×1.010^2μmolof nickel(II)…

A:

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: Hi, as you have posted 2 questions and have not mentioned which one you want us to solve for you.…

Q: A chemist prepares a solution of potassium dichromate (K,Cr, O,) by measuring out 63.7 µumol of…

A:

Q: If 0.42 mg calcium fluoride, CaF2 is used as above to add fuoride to the drinking water, does CaFz…

A: Given that 0.42 mg CaF2 is used to add fluoride in drinking water.We have to find between 0.42 mg of…

Q: A chemist prepares a solution of mercury(II) iodide (Hgl,) by measuring out 0.00569 µmol of…

A:

Q: A chemist prepares a solution of potassium iodide (KI) by weighing out 0.5448 kg of potassium iodide…

A:

Q: A chemist adds 150.0mL of a 0.0013/molL copper(II) fluoride CuF2 solution to a reaction flask.…

A:

Q: themist prepares a solution of potassium chloride (KCl) by measuring out 43. mg of KCl into a 50. mL…

A:

Q: A)  Calculate the molarity 12.21 mg KI in 107.6 mL of solution         Express your answer using…

A: Molarity of a solution is defined as the number of moles of solute to the total volume of solution.

Q: Suppose 13.5 g of barium acetate is dissolved in 300. mL of a 0.20 Maqueous solution of ammonium…

A: Details

Q: A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 0.0029 µmol of zinc oxalate…

A: Given :-  No.of moles of ZnC2O4 = 0.0029umol  Volume of solution = 150. mL  To calculate :-…

Q: A student dissolved 4.52 g of Mg(NO3)2(s) in enough water to make 400 mL of solution. What is the…

A: Given: Mass of Magnesium nitrate = 4.52g Volume of Solution = 400mL

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: A chemist adds 390.0mL of a 8.14*10^−5M zinc oxalate ZnC2O4 solution to a reaction flask. Calculate…

A: We have to first calculate moles of zinc oxalate

Q: A chemist prepares a solution of potassium bromide (KBr) by measuring out 1.75 g of KBr into a 250.…

A: Mass of KBr = 1.75 g  Volume of solution = 250 mL = 0.25 L

Q: A chemist prepares a solution of calcium sulfate (CaSo,) by measuring out 0.0770 µmol of calcium…

A:

Q: A chemist adds 310.0 mL of a 0.045 mmol/L sodium thiosulfate (Na₂S₂03) solution to a reaction flask.…

A:

Q: A chemistry student weighs out 0.156 g of lactic acid (HC₂H₂O3) into a 250. mL volumetric flask and…

A: C3H5O3H  +   NaOH   ----->  C3H5O3Na  +  H2OSince, 1 mol of NaOH is required to react with 1 mol…

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

A: The mass of mercury (I) chloride (Hg2Cl2) is 1.96 mg.The volume of the solution is 500. mL.To find…

Q: An analytical chemist weighs out 0.159 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Neutralization reaction : Equivalent amount of acid reacts with a equivalent amount of base This…

Q: Suppose 2.34 g of sodium chloride is dissolved in 300. mL of a 51.0 m M aqueous solution of silver…

A:

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

A:

Q: An aqueous HCI solution containing 36.71 % HCl by weight has a density of 1.222 g/mL. Calculate its…

A:

Q: You were tasked to prepare KNO3 solution with a concentration of 0.866 M. What volume (in mL) of…

A: When we make solution of any concentration from the given stock solution then we use the equation…

Q: A chemist prepares a solution of aluminum sulfite (Al, (Al₂(SO3)3) by measuring out 56.8 μmol of…

A: Given, moles of Aluminium sulfite (Al2(SO3)3) = 56.8 µmol = 56.8 × 10-6 mol Volume of the volumetric…

Q: A chemist adds 430.0mL of a 9.76 M silver perchlorate AgClO4 solution to a reaction flask.…

A: Given information: Volume = 430.0 mL Concentration of silver perchlorate = 9.76 M

Q: A chemistry student weighs out 0.0598 g of acrylic acid (HCH₂CHCO₂) into a 250. mL volumetric flask…

A: Reaction is  HCH2CHCO2 + NaOH→ CH2CHCO2Na      + H2O   Given : mass of acrylic acid = 0.0598 g…

Q: u

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

Q: A chemist adds 110.0 of a 1.63 molcalcium bromide (CaBr 2 ) solution to a reaction flask Calculate…

A: I assume what the chemist added is: 110.0 mL of a 1.63 mol/L (or 1.63 M) calcium bromide (CaBr2)…