An aqueous solution of sodium hydroxide, NaOH , is made by dissolving 15.6 grams of sodium hydroxide in sufficient water in a 500. mL volumetric flask, and then adding enough water to fill the flask to the mark. What is the weight/volume percentage

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: In order to form a monolayer of stearic acid (in a petri dish that measures 14.50 cm in diameter),…

A: Density of a substance is useful in the identification of pure substances and characterization with…

Q: An analytical chemist weighs out 0.344 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given: Mass of acid = 0.344 g Molarity of NaOH = 0.0700 M Volume of NaOH = 65.5 mL = 0.0655 L

Q: A 14.0 mL sample of vinegar, which is an aqueous solution of acetic acid, CH3COOH, requires 24.5 mL…

A: From the balanced chemical equation:mols CH3COOH(vinegar) = mols NaOH(titrant) mols NaOH = MNaOH x…

Q: Vinegar is sold as a standardized solution of 5.00% by mass acetic acid in water. Assuming the…

A: Given that vinegar is  5.00%  by mass acetic acid in water. i.e. 5 g of acetic acid (CH3COOH) is…

Q: A chemistry student weighs out 0.0906 g of lactic acid (HC,H,0,) into a 250. mL volumetric flask and…

A:

Q: What is the mass % of propylene glycol in a 2.77 M solution of propylene glycol (MM = 76.09 g/mol)…

A: Mass percent shows the mass of solute present during a given mass of solution.  Mass percent is…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A:

Q: A chemistry student weighs out 0.162 g of lactic acid (HC,H,o,) into a 250. mL volumetric flask and…

A: Answer :- 20.0 (mL) The volume of NaOH solution needed to reach equivalence point = 20.0 mL…

Q: Q5: 1.44 grams of a sample of marble (impure calcium carbonate) dissolved in 40 ml of 1.0 normality…

A: Initial concentration of acid (M) = 1.0 M Initial volume of acid (M) = 0.04 L Initial number of…

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

A: Given, Volume of Solution = 625 mL  W/V % of Sucrose = 36.0% Mass of sucrose = ?

Q: A 66.7 mL sample of 18.0 M sulfuric acid was diluted with enough water in a volumetric flask to make…

A: The solution is as follows:

Q: A chemistry student weighs out 0.0529 g of lactic acid (HC,H,o,) into a 250. mL volumetric flask and…

A: Given information: Mass of lactic acid = 0.0529 g Molarity of NaOH = 0.0900 M

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: The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental…

A: As per our guidelines we can only solve first three sub-parts of a question. Please resubmit the…

Q: 150 to 140 130 120 110 100 NaNO 90 80 70 60 50 KCI 40 Nac 30 20 KCIO Ceso, O 10 20 30 40 50 60 70 80…

A: Solubility The amount of solute present in a 100 g of solvent is known as solubility. The solubility…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Concentration: In chemistry strength of a particular solution can be measured by the following…

Q: grams of aspirin tablets are dissolved in water and titrated with the NaOH from an initial volume of…

A:

Q: . An aqueous solution of sodium carbonate, Na2CO3, is titrated with strong acid to a point at which…

A:

Q: In the laboratory, a student dilutes 12.8 mL of a 9.35 M perchloric acid solution to a total volume…

A: In the dilution process, the relationship between initial and final concentrations and volumes of…

Q: A 15.2-g sample of sodium carbonate is added to a solution of acetic acid weighing 19.4 g. The two…

A: Soln

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

A:

Q: A solution is made by adding 29.1 mL of concentrated potassium hydroxide (34.5 wt%, density 1.46…

A:

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 0.115 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given; The volume of the NaOH solution=8.5 mL = 0.0085 L. The molarity of NaOH = 0.1500 M. The given…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A: Given that : The weight of the empty graduated cylinder = 8.0 g The weight of cylinder with…

Q: What is the concentration of sodium chloride in the final solution if 18.50 mL of 0.125 M BaCl2…

A: From the moles of sodium chloride we can calculate the concentration of sodium chloride.

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

A:

Q: Knowing that 1 calorie = 4.184 joules and 1kWh = 3.6 x 106 Joules, convert the following: 2739…

A: Given: 1 calorie = 4.184 joules 1kWh = 3.6 x 106 Joules Toconvert: 2739 teraWh into nanocalories.

Q: In the laboratory you dissolve 16.6 g of magnesium chloride in a volumetric flask and add water to a…

A:

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Answer

Q: A student determines the calcium content of a solution by first precipitating it as calcium…

A: 1000 ml 1M solution means 1 mol is present in 1000 ml solution.  So, moles of Ca(NO3)2 in 53 mL of…

Q: You are making a rubbing alcohol (=isopropyl alcohol) solution to disinfect surfaces. You start with…

A: Given: Initial concentration of alcohol = 4.440 M Initial volume of solution = 316.7 mL And final…

Q: A student is diluting an aqueous NH4SCN solution for an experiment. The student starts with a O.100…

A: Dear student, in the given question, the NH4SCN solution is being diluted. Dilution is done by…

Q: An analytical chemist weighs out 0.185 g of an unknown monoprotic acid into a 250 mL volumetric…

A: Given:- analytical chemist weighs = 0.185 g Molarity = 0.2000M V = 9.5 mL Calculate molar mass of…

Q: . A concentrated perchloric acid solution is 65.8% HClO4 by mass and its density is 1.68 g mL−1.…

A: 65.8 g HClO4 in 100 g solution. Density = mass/volume  Volume of solution = 100/1.68 = 59.52 ml…

Q: A student is diluting an aqueous NH4SCN solution for an experiment. The student starts with a 0.100…

A: The final answer is reported in the same number of significant figures as does the error.

Q: A 15.6-g sample of sodium carbonate is added to a solution of acetic acid weighing 19.7 g. The two…

A:

Q: An aqueous solution of sodium chloride,NaCl , is made by dissolving 1.01 grams of sodium chloride in…

A: Weight/volume percentage= Mass of soluteVolume of solution×100%

Q: In a titration experiment, a student finds that 23.48 mL of a NaOH solution are needed to neutralize…

A: Step : 1             What is the concentration (in molarity) of the NaOH solution?

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A:

Q: Describe any visual differences between the hydrated sample and the dried, anhydrous form. How would…

A: Mass of alum taken = 2.0 g Mass of water released = 1.48 g( the value calculated is correct) Mass of…

Q: A sample of pure acetyl salicylic acid had a mass of 0.268 grams. It was dissolved in NaOH and…

A: Given Mass of aspirin = 0.268 g Molar mass of aspirin = 180.2 g/mol Volume of solution = 500.00 ml =…

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…

Q: A student is diluting an aqueous NH4SCN solution for an experiment. The student starts with a 0.100…

A: The strength of an unknown solution can be calculated by the following formula: V1S1 = V2S2 Where,…

Q: An analytical chemist weighs out 0.206 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: A chemist prepares a solution of silver perchlorate (AgClO,) by measuring out 1.07 kg of silver…

A: Given, mass of AgClO4 = 1.07 kg = 1.07 × 1000 g = 1070 g Volume of the solution = 250 mL = 0.250 L…

Q: An analytical chemist weighs out 0.264 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given data is as follows: The mass unknown diprotic acid = 0.264 g    The volume of water = 250 mL =…

Q: Gravimetric analysis of a mixture gives the percentage of a pure substance (either element or…

A: Given data,Density of water=1.029g/mLVolume of water sample=250mLMass of filter paper=1.058 gMass of…