A chemist prepares a solution of potassium bromide (KBr) by measuring out 31. mg of KBr into a 100. 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. dlo mol L ?

Q: A chemist prepares a solution of aluminum sulfite (Al, (SO3). ) by measuring out 81.0 µmol of…

A: Mol/L or molarity is the concentration unit of solution which is defined as no of mole of solute…

Q: A chemist prepares a solution of aluminum sulfite (Al, (SO,)) by measuring out 57.0 umol of aluminum…

A:

Q: A chemist prepares a solution of zinc oxalate (ZnC,O4) by measuring out 5.88 mg of zinc oxalate into…

A: Given: Zinc oxalate mass= 5.88 mg Volume = 350 ml   To find: The concentration of the zinc oxalate

Q: A chemist prepares a solution of barium acetate (Ba (C,H3O2),) by measuring out 291. g of barium…

A: Given: mass of barium acetate = 291. g Volume of barium acetate solution =450. mL…

Q: A chemist prepares a solution of silver(I) perchlorate (AgCIO 4) by measuring out 1.05 x 10° umol of…

A: When you talk about concentration in μmol/L that means no of micro moles present in one liter of…

Q: A chemist prepares a solution of sodium bromide (NaBr) by measuring out 33. mg of NaBr into a 250.…

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Q: A chemist prepares a solution of potassium dichromate (K,Cr,0,) by measuring out 16. umol of…

A: Molarity or concentration of solution may be defined as the number of moles of given solute…

Q: How many grams of 50% nitric acid and water should be taken to prepare a 15% nitric acid solution of…

A: Note : Instead of 15% nitric acid solution , there should be 15g nitric acid solution. Given: Mass%…

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

A:

Q: A chemist prepares a solution of aluminum sulfite (Al, (SO,).) by measuring out 1.5 × 10“ umol of…

A:

Q: A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92…

A: Given : Mass of NaCl : 7.7g Weight/Volume = 0.92 To calculate: volume of the saline solution.

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

A:

Q: An analytical chemist weighs out 0.123 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: An 8-fluid ounce [fl oz] glass of milk contains 305 milligrams [mg] of calcium. The molecular weight…

A: Molarity: Molarity can be defined by saying that the number of moles of the solute dissolved per…

Q: A chemist prepares a solution of mercury(II) lodide (Hgl,) by measuring out 0.00033 umol of…

A: Given :-  No. of moles of HgI2 = 0.00033 umol  Volume of solution = 150. mL  To calculate :…

Q: A chemist prepares a solution of sodium thiosulfate (Na,S,0,) by measuring out 271. g of sodium…

A:

Q: If 120 mL of a 1.2 M glucose solution is diluted to 550.0 mL, what is the molarity of the diluted…

A: Number of moles of solute present in 1 liter of solution is known as molarity of the solution.…

Q: What volume of a 1.63 mass % solution of Mg(NO 3)2 is needed to contain 0.316 grams of…

A:

Q: A chemist prepares a solution of mercury(II) iodide (HgI,) by measuring out 0.0056 µmol of…

A:

Q: A chemist prepares a solution of aluminum sulfite (Al₂(SO3)3) by measuring out 44. µmo! of aluminum…

A:

Q: An analytical chemist weighs out 0.131 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given: Weight of monoprotic acid is 0.131 g. Volume of acid is 250 mL. Molarity of NaOH is 0.1800 M.…

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: You wish to prepare 197 grams of 10.9 % NH,CH;CO0. You will need grams of ammonium acetate and mL of…

A: The concentration of a substance can be measured in terms of mass by mass percentage. Write the…

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: The concentration of chloride ions in a sample solution is 98 ppb. What is the mass in mg of…

A:

Q: A mixture is made by combining 1.51 lb of salt and 4.73 lb of water. What is the percentage of salt…

A: Percentage by mass or mass percent (w/w) % is defined as the ratio of mass of a substance to total…

Q: If 124 mL of a 1.2 M glucose solution is diluted to 550.0 mL , what is the molarity of the diluted…

A: The molarity of the given chemical solution is related to the number of moles of the solute and the…

Q: A sample of concentrated nitric acid has a density of 1.41 g/mL and contains 70.0%HNO, by mass. What…

A: Given: Density of concentrated nitric acid=1.41g/mol Mass percentage of nitric acid=70.0% Formula:…

Q: An analytical chemist weighs out 0.118 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: Mass of the triprotic acid = 0.118 g Volume = 250 mL Molarity of NaOH = 0.1100 M Volume of NaOH…

Q: From the information below, determine the mass of NH3 in 500 grams of concentrated ammonia?Ammonia,…

A: The ammonia solution is 28% by mass of solute; this means that 100 mL of the solution contains 28 g…

Q: A chemist prepares a solution of calcium sulfate (CaSO)4 by measuring out 0.258μmol of calcium…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: A chemist prepares a solution of magnesium chloride MgCl2 by measuring out 2.3g of MgCl2 into a…

A: The solubility of MgCl2 in the water at normal conditions is very high, so 2.3 g of MgCl2 is…

Q: Give an example of a mixture in which solute is solid and solvent is liquid.

A: NaCl (ionic solid) Water (liquid) Salt water

Q: What volume of 1.24 M KMnO4, in liters, contains 422 g of solute? Volume %3D

A: In order to find the volume of the solvent required we first write down the given data: Molarity=…

Q: What volume of 1.44 M KMN04, in liters, contains 292 g of solute? Volume = L. %3D

A: Given that, Molarity of KMnO4 = 1.44 M  Molar mass = 158.034 g mol-1 Mass of KMnO4 = 292 g  Volume…

Q: A chemist prepares a solution of mercury(I) chloride (Hg, Cl,) by measuring out 0.00011 umol of…

A:

Q: A chemist prepares a solution of sodium chloride (NaCl) by measuring out 0.50 g of NaCl into a 250.…

A: Given-> Weight of NaCl = 0.50 gm Volume = 250 ml =0.250 L (1L= 1000ml)

Q: A chemist prepares a solution of mercury(II) iodide (Hgl,) by measuring out 0.0051 umol of…

A: The concentration in units of moles per liter is called molarity. It is defined as the number of…

Q: A chemist prepares a solution of silver(I) nitrate (AGNO,) by measuring out 107. µmol of silver(1)…

A: Given data contains, Moles of silver nitrate is 107 μmol=107 μmol×1 mmole1000 μmol=0.107 mmol Volume…

Q: A student needs to prepare 100. mL of 0.618 M Cu(NO3)2 solution.  What mass, in grams, of copper(II)…

A: The mass of required copper(II)nitrate is determined by using given volume and molarity.The molarity…

Q: An analytical chemist weighs out 0.279 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: The given data contains, mass = 0.279 g. Volume = 250 ml. Molarity of NaOH=0.1400 M. Volume of NaOH…

Q: A chemist prepares a solution of potassium permanganate (KMNO,) by measuring out 0.28 umol of…

A: Rules of significant figures: Any non-zero number is significant. Zeros between significant numbers…

Q: Calculating molarity usihy A chemist prepares a solution of mercury(I) chloride (Hg,Cl, ) by…

A: Given, mass of mercury (I) chloride (Hg2Cl2) = 1.0 mg = 0.001 g Volume of the volumetric flask =…

Q: A chemist prepares a solution of zinc nitrate (Zn(NO, by measuring out 5.2 x 10 umol of zinc nitrate…

A: Number of moles = 5.2 × 102 u mol Volume of solution = 500 ml  ....Or  because 1L = 1000 ml…

Q: ml of a solution

A:

Q: A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 0.0152 µmol of magnesium…

A: Given that,  Moles of MgF2 added to 200 mL(= 0.2 L) flask = 0.0152 µmol = 0.0152×10-6 mol

Q: A chemist prepares a solution of aluminum sulfite (Al, (SO,)) by measuring out 179. µmol of aluminum…

A:

Q: A 0.2121-g sample of pure NaC,O, (134.00 g/mol) was titrated with 43.31 mL of KMNO4. What is the…

A: Normality can be obtained by multiplying the molarity of the KMnO4 solution with the number of…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.