A student weighs out 3.23 g of KBr, transfers it to a 125. mL volumetric flask, adds enough water to dissolve the solid and then adds water to the 125 mL mark on the neck of the flask. Calculate the concentration (in molarity units) of potassium bromide in the resulting solution? M

Q: A 23.5 g sample of KI was placed in a 500.0 mL volumetric flask, which was filled to the mark with…

A: The question is based on the concept of molarity.   molarity is a method of expressing concentration…

Q: DESTINE A student weighs out a 5.95 g sample of (NH4),PO4, transfers it to a 300. mL volumetric…

A: Given that -  Mass of ammonium phosphate Solute = 5.95 g  Volume of total Solution = 300 mL    Then…

Q: You have 130.0 mL of a 0.245 M salt solution in a coffee mug. After leaving the mug out for weeks,…

A: Answer :-           130.0 ml of 0.245 M salt solution in a coffee mug after a week a lot of water…

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

A: Step 1:The balanced equation for this reaction is: CdCl2(aq) + 2AgNO3(aq) → 2AgCl(s) + Cd(NO3) From…

Q: A 23.5 g sample of NaCl was placed in a 500.0 mL volumetric flask, which was filled to the mark with…

A:

Q: The Burke Museum at the UW is analyzing a dinosaur bone sample for the amount of calcium it…

A: The solid

Q: In the laboratory you dissolve 23.4 g of chromium(II) acetate in a volumetric flask and add water to…

A: Molarity is defined as the number of moles of solute dissolved per liter of the solution. Molarity,…

Q: 50 a) Solution 1 (the stock solution) has a molarity of 12.25 M and a volume of 1.50 L. Solution 2…

A: a) Given, Solution 1 molarity of stock solution (M1) = 12.25 M Volume of stock solution (V1) = 1.50…

Q: In the laboratory you dissolve 12.0 g of aluminum nitrate in a volumetric flask and add water to a…

A: Molar mass of Al(NO3)3 = 213 g/ mol Given mass of Al(NO3)3 = 12.0 g  Moles of Al(NO3)3 = Mass /…

Q: A 23.5 g sample of KBr was placed in a 500.0 mL volumetric flask, which was filled to the mark with…

A: The question is based on the concept of molarity.  molarity is a method of expressing concentration…

Q: The forensic technician at a crime scene has just prepared a luminol stock solution by adding 13.0 g…

A: A question based on concentration terms that is to be accomplished.

Q: If 28.4 g of NaI (MM = 149.89 g/mol) are added to a 500.0 mL volumetric flask, and water is added to…

A: Here given, weight of NaI = 28.4 g                    Molecular Weight = 149.89 g/mol…

Q: A. A student weighs out a 10.1 g sample of NaBr,transfer it to a 500.mL volumetric flask,adds…

A: The molarity of a solution is calculated using formula:   Molarity=No.of moles of soluteVolume of…

Q: A chemist places 2.6428 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: The solution is given below -

Q: True or False? When 100.0 mL of 2.4 M hydrochloric acid is added to 500.0 mL of water, the…

A: molarity is defined as no of moles of solute devided by volume of solution in liter.

Q: A chemist places 2.9764 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Given, Stock Solution 1 : mass of NaCl = 2.9764 g volume of flask = 100 mL Solution 2 : Volume…

Q: A chemist places 1.5999 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: In given problem, they asked for concentration of Na2SO4 and it is given as NaCl. So it will be…

Q: In the laboratory, a student adds 48.0 mL of water to 14.6 mL of a 0.624 M nitric acid solution.…

A: Given values, N1= 0.624 M V1= 14.6mL N2=?? V2= 14.6+48.0 = 62.6 mL

Q: A 15.0 mL 0.500 M NaNO3 solution is mixed with 50.0 mL 0.200 M Fe(NO3)3 solution. What is the molar…

A:

Q: A student weighs out a 12.2 g sample of K2S, transfers it to a 500. mL volumetric flask, adds enough…

A: Given; Note: (1L = 1000 mL)

Q: The forensic technician at a crime scene has just prepared a luminol stock solution by adding 17.0 g…

A: To determine the molarity (M) of a solution, you can use the formula:M In this case, you're given…

Q: e molar concentration

A: solution:

Q: A student weighs out a 5.32 g sample of NH4 Br, transfers it to a 250. mL volumetric flask, adds…

A: Molarity of the solution is the number of moles of solute present in 1 L of the solution.

Q: A solution is prepared by dissolving 3.0 g iron(II) chloride (MW=126.8 g/mol) with 75.0 mL of water.…

A: Solution Molar concentration is that the most convenient technique of expressing the concentration…

Q: The solubility of magnesium hydroxide, Mg(OH)2, in water is 9.0 × 10–4 g/100 mL. What volume of…

A:

Q: volume

A:

Q: How many grams of NO 3 - ion are in the  final solution?

A: Given : Mass of Co(NO3)2 in stock solution = 6.00 g And volume of stock solution prepared = 100 mL =…

Q: A stock solution of nitric acid is found in the back of the chem stock room, but the concentration…

A:

Q: molarity

A:

Q: A chemist places 2.2352 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Weight of NaCl is 2.2352 gm Molar mass of NaCl is 58.5 gm/mole

Q: Consider the following chemical reaction: BaCl2(aq) + Na2SO4(aq) -----------> 2NaCl(aq) + BaSO4(s)…

A:

Q: If 25.0 g of KBr (MM = 119.00 g/mol) are added to a 500.0 mL volumetric flask, and water is added to…

A: Concept introduction: Molarity of the solution is equal to the number of moles of solute dissolved…

Q: If 12.7 g of KBr (MM = 119.00 g/mol) are added to a 500.0 mL volumetric flask, and water is added to…

A: Molarity: The molarity of the solution can be defined as the number of moles of the solute present…

Q: 0.3120 g sample of potassium hydrogen phthalate is dissolved in 100.0 mL of water. If 25.60 mL of…

A: Weight of potassium hydrogen phthalate = 0.3120 g Volume of water = 100.0 ml = 0.100 L  (1 L =…

Q: A student needs to make 250 mL of 1.4 M Fe(NO3)3 by dilution. How many milliliters of a 5.0 M…

A: Given data:  Initial molarity of Fe(NO3)3 (M1) is 5.0 M The final volume of Fe(NO3)3 (V2) is 250 mL.…

Q: A 0.3240 g sample of potassium hydrogen phthalate is dissolved in 100.0 mL of water. If 26.79 mL of…

A: The objective of this question is to calculate the molarity of the sodium hydroxide solution using…

Q: If 36.0 g of NaOH (MM = 40.00 g/mol) are added to a 500.0 mL volumetric flask, and water is added to…

A: Solution:               The concentration of solution gives the number of moles of solute dissolved…

Q: A student weighs out a 3.79 g sample of potassium nitrate, transfers it to a 250 mL volumetric…

A: Given, mass of KNO3 = 3.79 g. Volume of the solution = 250 mL = 250 mL×1 L1000 mL = 0.25 L. We have…

Q: You have 291 mL of a 1.25 M potassium chloride solution, but you need to make a 0.50 M potassium…

A: Given data is as follows: The initial volume of potassium chloride V1= 291 mL The initial…

Q: 14. A student wants to determine the concentration of a AgNO3 solution. 200.0 mL of the AgNO3…

A: Calculate concentration of AgNO3 in term of Molarity...

Q: A 0.450 M solution of KCI needs to be prepared through dilution. A 2.00 M stock solution will be…

A: 0.450M solution of KCl is to be prepared, Let it be M1 = 0.450 M 2.0 M of stock solution , Let it…

Q: A student weighs out a 11.1 g sample of CuSO4, transfers it to a 500. mL volumetric flask, adds…

A: Given, mass of CuSO4 = 11.1 g Volume of the solution = 500 mL = 0.5 L Molarity of CuSO4 solution = ?…

Q: In the lab, a student makes a solution of NaOH by dissolving 49.0 grams of solid in 195 mL of water.…

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.