A chemist was asked to determine the molecular weight of Compound J.  They created a solution with 20 percentage w/w concentration from solid Compound J, with a density of 1.40 g/mL. From this solution, a 10 μL aliquot was taken and mixed with 190μL of reagent and water. This was then analyzed and had 5.0 e-4 M compound J. What is the concentration in molarity of the 20% w/w solution? How do you determine the molecular weight of said compound?

Q: How can you dilute a 2.00 M KOH(aq) solution to make 100.0 mL of a 0.050 M KOH(aq) solution? O…

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…

Q: A)1.00 L solution containing 108.65 g of ammonium arsenide was mixed with 0.38 L of 2.5 molar…

A:

Q: [References) What volume of 0.150 M HNO (nitric acid) reacts with 57.0 mL of 0.110 M Na CO3 (sodium…

A:

Q: The mass/volume percent (m/v %) of a solution is defined as the ratio of the mass of solute that is…

A: Molarity (M) is a measure of the concentration of a solute in a solution, or of any chemical species…

Q: Q7) Silver jewellery is usually made from silver and copper alloys. The amount of copper in an alloy…

A: Given that  The finest quality alloy is sterling silver, which is 92.5% silver by mass. Mass of…

Q: A student prepares a stock solution of BaF2 by dissolving 50.00g of a BaF2 in 1.00L of water. An…

A: Given data,Mass of BaF2=50.00gVolume of water=1.00LMolarity of desired solution=0.100MVolume of…

Q: Consider the following reaction: 3Cu(s)+8HNO3(aq)→3Cu(NO3)2(aq)+2NO(g)+4H2O(l) How many mL of 0.550…

A: The balanced reaction is given as 3Cu(s) + 8HNO3(aq) ------> 3Cu(NO3)2(aq) + 2NO(g) + 4H2O(l) The…

Q: If 20 mL of 0.5 M Pb(NO3)2 solution is added into 40 mL 0.5 M KI solution, how many grams of Pbl2…

A: A multiple choice question based on mole concept, which is to be accomplished.

Q: Charysse the Chemist needs to make 500.0 mL of 3.00 M HCIO4 solution. She has 11.7 M (concentrated)…

A: Answer:In dilution process pre-measured quantity of water is gradually added in the stock solution…

Q: The mass/volume percent (m/v %) of a solution is defined as the ratio of the mass of solute that is…

A: A. To convert units of molarity (M) to mass/volume percent (m/v%), you need to know the molar mass…

Q: What is the concentration of H2O2 and KI after mixing using the following volumes: 3.95 mL of…

A:

Q: How do I solve this 3 part question?

A: Mass of KHP = 1.372 g Volume of NaOH = 21.84 ml Density = 1.01 gml

Q: the mass percent of an unknown NaCl solution with a conductivity of 1,566 uS/cm?

A: We have to find mass percent of an unknown NaCl solution with a conductivity of 1,566 uS/cm.  Given…

Q: Calculate the eq per liter of 0.321g Na2CO3Na2CO3 when it is mixed in a 250ml solution. (MM Na2CO3=…

A: The normality of a solution is an important method which is used to indicate the concentration of a…

Q: percent (m/v)

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 5.50 mL of H2O and 3.00 mL of an aqueous 0.030 M I solution were added to 13.50 mL of an aqueous…

A: Initial molarity of Fe3+ solution=0.025 M Initial volume of Fe3+ solution=13.50 mL = 0.01350 L…

Q: A solution was prepared by dissolving 5.9833 g NaCl in sufficient water to create a 1-L solution in…

A: Mass of NaCl = 5.9833 g  Uncertainty in mass = +/-  0.1 * 10-3 g = +/- 0.0001 g = 10-4 g Volume of…

Q: To prepare a standard solution of Cu²+ you obtain a piece of copper from a spool of wire. The…

A:

Q: A stock solution of FD&C Yellow No. 5 (Tartrazine, 234.3 g/mol) was prepared by placing 5.16 g in a…

A:

Q: A silver nitrate solution contains 5.63 g of primary standard AgNO3 (MM = 169.87 g/mol) in 1.00 L.…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: ● ● Calculate the amount of each chemical required to make a 10x stock of TBE in a final volume of…

A: We know that, V×M = number of mmol  Where V = volume & M = molarity of the solution.

Q: Samuel dilutes a 0.500 M sodium hydroxide solution by adding 150.0 mL deionized water to 100.0 mL of…

A:

Q: Suppose you have a solution containing 1.0 M NaCI, 2.0M Na20, and 0.5 M CaCl2. What are the total…

A:

Q: Prepare 100.00 mL of a solution with ALL the following chemicals into together; CHEMICALS PROVIDED

A: We have to Prepare 100.00 mL of a solution

Q: If 30.4 g of C₂H₅OH (MM = 46.07 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Molar concentration = Number of moles of solute/Volume of solution (L) Number of moles of solute =…

Q: Identify whether the example describes an anabolic or catabolic pathway. Anabolic pathway Answer…

A: A question based on introduction to organic chemistry that is to be accomplished.

Q: 6.) One way to determine the amount of nitrogen in a sample is through a method called Kjeldahl…

A: HCl is monobasic acid and NaOH is monoacidic base Therefore, for neutralization, moles of NaOH used…

Q: 1. A student weighed out 0.300 grams of a monoprotic acid (HA) and added 50.0 mL of DI water to the…

A:

Q: The mass/volume percent (m/v %) of a solution is defined as the ratio of the mass of solute that is…

A: First, it's important to understand what the terms mean. Molarity (M) is a measure of the…

Q: What is the molarity of a solution that results from dissolving 7.2 g of a compound with W 104.69…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: Utilizing the molarity equation, calculate the concentration of Potassium Hydrogen Phthalate (KHP)…

A:

Q: If 35.0 g of C₂H₅OH (MM = 46.07 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Concentration Molar concentration or Molarity or amount concentrationis a measure of the…

Q: Normality of H2$O4 was determined by titrating 150.00 mL of the solution against a known NaOH…

A:

Q: stock solution was prepared by disse stock solution of caffeine and dilut ight of Caffeine = 194.2…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The balanced chemical reaction is given as: H2C2O4 (s) + 2NaOH (aq) → Na2C2O4 (aq) + 2H2O (l)…

Q: 11) Consider the reaction  2 LiOH (aq)+ H2SO4(aq)=2 H2O(l)+ Li2SO4( aq) how many mL of a 0.233M…

A: We have a balanced acid base reaction. We have 42.8 ml of 1.57 M of acid, and 0.233 M of base. We…

Q: Dr. Donwonree tried to determine the vitamin C content in apple juice which he bought at CheMarket.…

A:

Q: 11- the molar concentration of HNO3 (63.0 g/mol) in a solution that has a specific gravity of 1.42…

A:

Q: According to the reaction below: if it required 65.19 mL of HCl with an unknown concentration to…

A: