A chemist prepares a solution of iron II  bromide    FeBr2    by measuring out  1.0g  of  FeBr2  into a  250.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  2  significant digits.

Q: You have been provided with a 35.7 mL sample of lithium hydroxide (LiOH) of unknown concentration.…

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Q: A chemist prepares a solution of vanadium III chloride VCl3 by measuring out 0.90g of…

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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: chloride    FeCl3    by measuring out  2.70g  of  FeCl3  into a  300.mL  volumetric flask and…

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Q: Calculate the molarity of a solution of 42.64 g of aluminum nitrate, Al(NO3)3, in 1260 mL of…

A: Molarity =no. of moles of soluteVolume of the solution in litre  no. of moles =given massMolar mass

Q: A chemistry student weighs out 0.163 g of lactic acid (HC,H,O3) into a 250. mL volumetric flask and…

A: Molarity if a solution is calculated as  Molarity=Number of MolesVolume (mL)×1000

Q: e molarity of

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Q: Suppose 0.642 g of iron(II) iodide is dissolved in 50. mL of a 63.0 m M aqueous solution of silver…

A: Given that : The mass of iron (II) iodide = 0.642 g The volume of silver nitrate solution = 50 mL…

Q: What mass in grams (g) of Li3PO4  (MM=115.97 g/mol) is needed to prepare 125. mL of a solution…

A: Molarity (M) indicates the number of moles of solute per liter of solution (moles/Liter) and is one…

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

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Q: A chemistry student weighs out 0.111 g of sulfurous acid (H,So,), a diprotic acid, into a 250. mL…

A: The given data contains, mass of sulfurous acid = 0.111 g. Volume = 250 ml.  = 0.250 L. Molarity of…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 7.51 mL sample taken…

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Q: A chemist adds 325.0 mL of a 0.21M potassium dichromate (K,Cr,O,) solution to a reaction flask.…

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Q: Suppose 0.746 g of zinc iodide is dissolved in 150. mL of a 60.0 m M aqueous solution of potassium…

A: Zinc iodide (ZnI2) and potassium carbonate (K2CO3) are completely soluble in water.  Hence they are…

Q: A chemistry student weighs out 0.0812 g of sulfurous acid (H₂SO3), a diprotic acid, into a 250. mL…

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Q: The density of toluene 1C7H82 is 0.867 g>mL, and the density of thiophene 1C4H4S2 is 1.065…

A: Given: Density of toluene     = 0.867 g/mL Density of thiophene = 1.065 g/mL Mass of thiophene     =…

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

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Q: chemistry student weighs out 0.160 g of sulfurous acid (H2SO3), a diprotic acid, into a 250. mL…

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Q: Suppose 2.01g  of sodium nitrate is dissolved in  350.mL  of a  31.0mM  aqueous solution of…

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Q: Suppose 23.8 g of sodium iodide is dissolved in 350. mL of a 0.80 M aqueous solution of silver…

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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 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: A chemist prepares a solution of sodium bromide   NaBr    by measuring out  0.25g  of  NaBr  into…

A: Given :-  Mass of NaBr = 0.25 g  Volume of solution = 50. mL  To calculate :-  Molarity of Br- ions

Q: If 25.00 mL of a solution of sodium hydroxide (NaOH) is exactly neutralised by 13.47 mL of 0.131 mol…

A: To find the concentration of the sodium hydroxide (NaOH) solution, we can use the stoichiometry of…

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 titration is performed to determine the amount of sulfuric acid, H2SO4, in a 7.27 mL sample taken…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

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

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Q: How many moles of ammonia are in 375. mL of a 2.25 M aqueous ammonia solution

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Q: A chemist prepares a solution of vanadium III bromide VBr3 by measuring out…

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Q: If 42.1 mL of 0.214 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of…

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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: An aqueous solution of ammonium sulfate,(NH4)2SO4 , is made by dissolving 3.44 grams of ammonium…

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

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Q: Suppose 6.22 g of ammonium iodide is dissolved in 250. mL of a 0.20 M aqueous solution of potassium…

A: Given ,  Mass of ammonium iodide = 6.22 g Molar mass of ammonium iodide = 144.94 g/mol Moles of…

Q: A chemist makes 810. mL of aluminum sulfate sulfate in water. Calculate the concentration of the…

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Q: A chemistry student weighs out 0.107 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask…

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Q: A chemist prepares a solution of iron(III) bromide (FeBr,) by weighing out 152.1 g of iron(III)…

A: Concentration: The concentration of a solution can be represented in several ways like g/L, ppm.…

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: Suppose 0.433 g of zinc chloride is dissolved in 150. mL of a 19.0 m Maqueous solution of potassium…

A: Given, The mass of zinc chloride = 0.433 g. Volume of potassium carbonate = 150. mL Molarity of…

Q: 3.45 mol of LiCl in 3.53 L of solution Express the molarity in moles per liter to three significant…

A: Given  (a)  Number of mole of LiCl = 3.45 mole        Volume = 3.53 Liter        Molarity = ?  (b)…

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: Suppose 2.92 g of copper(II) acetate is dissolved in 50. mL of a 0.60 M aqueous solution of sodium…

A: Step 1: Calculate the number of moles of copper(II) acetate: First, we need to convert the mass of…

Q: A chemist prepares a solution of silver(I) nitrate (AGNO,) by measuring out 245. µmol of silver(I)…

A: Concentration in terms of Micromole per litre...

Q: Acetaldehyde (C₂H4O), an oxidation product of ethanol, is found in every type of wine. On average,…

A: Volume of bottle = 750 ml = 0.750 L

Q: diluted

A: mmoles of HCl = ( Molarity ) • ( volume )  mmoles of HCl = 3.00molL-1 • 25.00mL  mmoles of HCl =…

Q: How many grams of oxalic acid, H2C2O4, are required to prepare 750. mL of a 0.250 M oxalic acid…

A: Molecular Wt of oxaclic acid = 1262 (no. of eq)g To find the grams of 0.25M oxalic acid needed for…

Q: Suppose 1.47 g of zinc iodide is dissolved in 100. mL of a 76.0m M aqueous solution of potassium…

A: This question involves calculating the final molarity of zinc cation (Zn2+) in a solution that…