What is the concentration of an aqueous caffeine solution that is prepared by dissolving 36.8 g of caffeine, C8H10N4O2, in a total volume of 2.00 x 102 mL?

Q: What is the mole fraction of NaOH in an aqueous solution thatcontains 22.8% NaOH by mass?

A: Mole fraction of a substance in the amount or moles of that substance in total amount of he mixture.…

Q: Calculate the mole fraction of a solution containing 635 mg of Calcium nitrate dissolved in 5.50 mL…

A:

Q: Calculate the molarity of a solution in which 360. grams of glucose, C6H12O6, are dissolved in…

A: m = 360 g V =  250 mL        [ 1L = 1000ml]    = 0.250 L  Molar  mass of  C6 H12 O2 =  180.16 g/mol

Q: How many grams of Na2S2O3 are needed to prepare 87.0 mL of a 5.00 %(m/v) Na2S2O3 solution?

A: The (m/v) concentration of a solution is calculated by using the following equation: m/v…

Q: What volume in L of concentrated potassium hydroxide solution (21.5 mol/L) is required to prepare…

A:

Q: What is the molarity of a hydrogen peroxide solution (H2O2) solution prepared by mixing 30 grams of…

A: Molarity is a unit of concentration defined as the number of moles of solute per volume of the…

Q: Calculate the mass, in grams, of KCl needed to prepare 225.0 g of 5.000 %(m/m) KCl solution.

A:

Q: What is the molarity (M) of a 2.0% (w/v) NaCl solution?

A:

Q: calculate the grams of NaCI needed to prepare 155mL of a 11.5% (m/v) solution?What is the molarity…

A: Given that,  Volume of NaCl solution = 155ml m/v percentage of NaCl solution = 11.5%

Q: Calculate the number of mmoles of solute that are present in 3400 ml of an aqueous solution that…

A: Given: Volume of solution = 3400 mL Concentration of AgNO3 = 4000 ng/mL Density of solution = 1 g/mL…

Q: What is the concentration (molarity) of a solution created by dissolving 125.4 grams of Mg3P2 to…

A: Molarity =  moles / volume  So find the moles of given compound using moles =  mass / molar mass…

Q: What mass of sucrose, C12 H22 O11 , is needed to make 500.0 mL of a 0.200M solution?

A:

Q: In a 54.0-g aqueous solution of methanol, CH4O, the mole fraction of methanol is 0.220. What is the…

A: mole fraction : It is the ratio of moles of a particular component to that of the total moles of…

Q: 2.45 mole of methanol (CH3OH) in 5.00 L of solution

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

Q: Calculate the mole fraction of MgC l 2 in a solution createdby dissolving 132.1 g of MgC l 2 in 175…

A: The given data contains, mass of MgCl2 = 132.1 g. Volume of water = 175 ml.= 0.175 L.

Q: An aqueous solution that contains 285 ppm of potassium nitrate (KNO3) is being used to feed plants…

A: The solution is as follows :

Q: An 8 oz bottle of Dr. Pepper made with imperial cane sugar (C12H22O11) contains 27 g of sugar in…

A:

Q: What is the mole fraction of CaBr2 in a 20%(by mass) aqueous solution?

A:

Q: What is the Molarity of a solution prepared by mixing 75.0 g NaCl with enough water to make the…

A:

Q: 3a. What is the Molarity of a solution made by dissolving 7.65g Ca(OH)2 in 750.mL solution? 3b. In…

A: 3a. We know that molarity = No of moles of soluteVolume of solution in litre Given, Mass of Ca(OH)2…

Q: How many grams of Na2SO4 should be weight out to prepare 500 ml of a 0.2 M solution?

A: Given details, Volume = 500 mL = 0.5 L Molarity = 0.2 M To calculate the mass in grams.

Q: What is the molality of a 10% w/w NaCl solution?

A: Molality is defined as number of moles of solute divide by mass of solvent in kilograms

Q: How many grams of Na2CO3 are needed to prepare 11.6 mL of a 1.27%(m/v) Na2CO3 solution?

A:

Q: How many grams of sugar (sucrose), C12H22O11, are required to prepare 125 mL of a 0.100 M sugar…

A: The calculation of the number of moles of sucrose is obtained as follows:

Q: How many grams of Na2CO3 are needed to prepare 48.8 mL of a 1.31%(m/v) Na2CO3 solution?

A: There are several ways of determining the concentration of a solute in a solution such as: Mass…

Q: A solution of acetic acid, CH3CO2H, is prepared by dissolving 40.0mL of acetic acid in enough water…

A: Volume % = volume of solute/volume of solution*100

Q: What is the volume percent (v/v) of Br2 in a solution prepared by dissolving 12 mL of liquid bromine…

A: The volume percent of a solution can be calculated using equation (1). In this equation, Vs is the…

Q: If an aqueous solution is 9.69% (w/v) in ammonium carbonate,(NH4)2CO3 , how many grams of ammonium…

A: %(w/v) = (100 x Mass of solute in g)/Volume of solution in mL %(w/v) = (100 x W)/V

Q: What is the mole fraction of H2SO4 in an aqueous solution that contains 45.2 grams of H2SO4 in 90.8…

A:

Q: What is the percent by mass of ethanol (C2H5OH) in a 1.5 m aqueous solution?

A: Mass percent is the amount of solute divided by the mass of the compound and multiplying the result…

Q: How many grams of glucose (C6H12O6) are present in 257.3 mL of a 11.2 M solution?

A: Molarity of a solution can be defined as the number of moles of solute dissolved per litre of…

Q: What is the freezing point of a 1.85 m solution of a nonvolatile nonelectrolyte solute in…

A: Given information: Molality of solution = 1.85 m

Q: How many grams of CoCl2.6H2O is needed to prepare 250.0mL of 0.150 M CoCl2 solution

A: The question is based on the concept of solutions.   Molarity is a method of expressing…

Q: What mass of ammonium sulfate, (NH4)2SO4 must be added to prepare 200.0 g of a 3.5% solution of…

A: 3.5% Solution of (NH4)2SO4 means 100g solution of ammonium sulfate contains 3.5g (NH4)22SO4.

Q: What mass of KClO3 should be measured out to make a saturated solution in 300g of water at 70 deg C?

A:

Q: A 16.00% aqueous solution of glycerol, HOCH2CH(OH)CH2OH, by mass, has a density of 1.037 g/mL. What…

A:

Q: What is the molarity of a 3.468 molal solution of iron(III) chloride with a density of 1.365 g/mL?

A: Given: The molality of iron(III) chloride is 3.468 m The density of iron(III) chloride is 1.365 g/mL…

Q: What is the mole fraction of ethanol, CH;CH20H, in an aqueous solution that is 20.0% ethanol by…

A: Requested question number 2. The concentration of aqueous solution ethanol (CH3CH2OH) = 20% ethanol…

Q: 6. How many grams of Na CO; must be dissolved in 40mL of solution that is exactly 2.45 M? What would…

A:

Q: What is the mass, in grams, of glucose, C6H12O6, that is present in 500 mL of a 0.40 M aqueous…

A: Given data, Volume of glucose solution is 500mL=0.5L Molarity of glucose solution is =0.4 M

Q: What is the molality of a 60.5% by mass of nitric acid (HNO3) solution?

A:

Q: What is the concentration in %m/v of a 0.729 M aqueous solution of ethanol (MM = 46.07 g/mol)? %3D

A: % m/v mean grams of solute per 100 mls of solution.

Q: What is the mass percent of a caffeine solution made by dissolving 6.35 g of caffeine, C8H10N4O2, in…

A: Given : Mass of caffeine dissolved = 6.35 g And mass of benzene = 75 g

Q: What is the freezing point of a solution prepared by dissolving 5.84 g Na2SO4 in 250.0 g H2O?

A: ∆T=i.Kf.m          Because,         ∆T=Tsolvent-Tsolution         Therefore,…

Q: If a tablet containing 100 mg of caffeine (C3H10N4O2) is dissolved in water to give 10.0 oz of…

A: First we have to calculating the moles of caffeine:

Q: How many milliliters of water must be added to 18.5 g of C6H12O6 in order to obtain a solution with…

A: We have to predict the mass of water needed.

Q: What mass of cesium bromide must be added to 0.500 L of water (d = 1.00 g/mL) to produce a 0.739 m…

A: Molality is the total moles of a solute contained in a kilogram of a solvent. Molality is also known…

Q: In a 64.0-g aqueous solution of methanol, CH4O, the mole fraction of methanol is 0.110. What is the…

A: Weight of solution = 64 g Moles of Methanol = x Moles of Water = y Mole Fraction of Methanol…

Q: What is the mole fraction of solute in a 3.70 m aqueous solution?  xsolute =

A: Molality is the number of moles of solute in 1 kg of solvent.  Here, the solvent is water, as the…

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.