Caffeine is a stimulant found in tea and coffee. A sample of Caffeine was dissolved in 45.0 g of Chloroform CHCl3, to give a 0.0946 m solution. How many grams of caffeine were in the sample? (Molar mass of Caffeine = 194.2 g/mol, Molar mass of Chloroform = 119.4 g/mol)

Q: A sample of 100 Unit/L is diluted 1 in 10, what is the concentration of the final solution?

A: The formula of dilution is  M1V1 = M2V2  Where  M1 and M2 are initial and final concentration V1 and…

Q: Reagent nitric acid is 70.04% HNO3 by mass and its molarity is 14.84 M. Calculate its molality.…

A: Molarity is defined as moles of solute present per L of solution. Its unit is mol/L. Molality is…

Q: What is the mass % of acetonitrile in a 2.77 M solution of acetonitrile (MM = 41.05 g/mol) in water?…

A: Mass percentage or percentage by weight is one of the concentration terms that indicates the mass of…

Q: Normal saline is a mixture of NaCl in sterile water. Its concentration is 0.900% (g/mL) and mimics…

A: Molarity and molality are concentration terms which tells about the amount of solute present in the…

Q: . What is the molarity of a solution made when water is added to 11.0 g urea (MM=60.07) to make 100.…

A: 9.Molarity is used to express concentration of a solution.

Q: What is the mass percent NaCl when 30.3 grams of sodium chloride are dissolved in 127.2 grams of…

A: The objective of this question is to calculate the mass percent of sodium chloride (NaCl) in a…

Q: 132 g of 0.445 m KCl Express your answer using three significant figures. msolute = VE ΑΣΦ Submit…

A: mass of solution = 132 gmolality = 0.445 mmass of KCl =?

Q: What is the molality of a solution that contains 2.16 g mL of chemical A (denisty = 1.43 g/mL and…

A:

Q: An aqueous solution is1.983% by mass of sodium sulfite pentahydrate, Na2SO3∙5H2O. What is the…

A: Molarity is defined as the number of moles present in 1 liter of solution. It is given as: Molarity…

Q: Household ammonia used for cleaning contains about 4.5 g of NHs in 200 mL of solution. What is the…

A:

Q: An aqueous solution of isopropanol (MM = 60.10 g/mol) has a molality of 7.91 m and a density of 1.18…

A: Given data contains, Molality of isopropanol solution is 7.91m. Density is 1.18g/ml. Molar mass of…

Q: Ethylene glycol is the primary component in antifreeze. How many grams of ethylene glycol…

A: Molarity ( M ) is defined as " the number of moles of solute ( n ) present in one litre of solution.…

Q: What is the molality of a solution made by combining 2.3266 g sodium hydroxide, NaOH, with 0.3400 L…

A:

Q: An aqueous solution of fructose (MM = 180.2 g/mol) has a molality of 4.73 m and a density of 1.30…

A:

Q: How many grams of KNO3 is present in 125 g of solution that is 0.420 M KNO3? The density of the…

A:

Q: An aqueous solution of acetone (MM = 58.08 g/mol) has a molality of 2.57 m and a density of 1.25…

A: Molarity :-  The number of moles of solute dissolved in one litre of solution is defined as molarity…

Q: A student dissolves 7.4 g of glucose (CH,0,) in 150. mL of a solvent with a density of 1.11 g/mL.…

A:

Q: An aqueous solution of glucose (MM = 180.2 g/mol) has a molality of 3.47 m and a density of 1.20…

A:

Q: How many grams of HNO3 are present in 85.0 ml of a 5.50 M solution? [HNO3 = 63.0 g/mol] %3D

A: Molarity of HNO3 solution = 5.50 M Volume of solution = 85.0 mL Molar mass of HNO3 = 63.0 gmol-1

Q: An aqueous solution of acetone (MM = 58.08 g/mol) has a molality of 4.45 m and a density of 1.25…

A:

Q: How many grams of aluminum oxalate, AlGo would be needed

A: Molarity = number of moles of solute/volume of solution (in L)  So,  Number of moles = molarity ×…

Q: Given the following mixture of two compounds 65.00 g of solid X (MW =54.00 g/mol) and 840.00 mL of Y…

A: The molarity of a solution is the number of moles of the solute present in 1 L of the solution. Its…

Q: A solution of H2SO4(aq) (98.07 g/mol) with a molal concentration of 4.60 m has a density of 1.25…

A:

Q: the density of a 3.539 M HNO3 aqueous solution is 1.150 g x mL-1 at 20 Degrees C. What is the molar…

A: Given Molarity = 3.539 M Density = 1.15 g/ml

Q: A quantity of 22.68mL of a KOH solution is needed to neutralize 0.5118g of potassium hydrogen…

A: Molar concentration (molarity) is the ratio of moles of solute to the volume of solution in L.…

Q: Consider boric acid (H3BO3; 61.83 g/mol). A 250 mL solution of 0.125 M boric acid solution contains…

A: Molarity(M)is defined as the number of moles of solute present in 1000mL of the solution. M=Moles of…

Q: In the reaction ==> Co- Cu2+ Knowing that Cu2+ + e ==> Cu* EO= 0.15 V Co3+ + e ==> Co*2 E°= 1.82 V…

A:

Q: A solution containing 41.684 g of LiF (M.M. = 25.939 g/mol) per liter has a density of l1.391 g/mL.…

A: Molarity is defined as the moles of solute per litre of the solution. M=nV..........(1) where M:…

Q: Calculate the molality of KCl in the solution. Express vour answer with the appropriate uni

A:

Q: At 70 °C, the solubility of an unknown solute is 65.7 g/100.0 g of water. What mass of the solute…

A:

Q: 0.28g of sodium sulfate (molar mass = 142.04 g/mol) is dissolved into 50mL of water. It is labeled…

A: Given that:                 Mass of sodium sulfate = 0.28 g                         Volume of…

Q: How many grams of sodium hydroxide are present in 247.0 mL of a 0.500 M NAOH solution? mass of…

A:

Q: An aqueous solution of glucose (MM = 180.2 g/mol) has a molality of 8.27 m and a density of 1.20…

A: The given data is as follows: The molality of solution = 8.27 m The density of solution = 1.20 g/mL…

Q: An aqueous solution of ethanol (molar mass = 46.07 g/mol) has a molality of 12.15 m and a density of…

A: Answer:- This question is answered by using the simple cocept of calculation of molarity using the…

Q: What mass of KBr is present in 54.92 g of 14.2% (m/m) KBr solution?

A: Answer: In this question we have to find out the mass of KBr that should be present in 54.92g…

Q: An aqueous solution of glucose (MM = 180.2 g/mol) has a molality of 5.21 m and a density of 1.20…

A: Given:Molality of Glucose = 0.258 mDensity of glucose solution = 1.20 g/mLFirst calculate the mole…

Q: What is the mass percent NaCl when 30.3 grams of sodium chloride are dissolved in 127.2 grams of…

A: The objective of this question is to calculate the mass percent of sodium chloride (NaCl) in a…

Q: Calculate the molarity of 0.650 mol of Na, S in 1.40 L of solution. molarity: M Calculate the…

A: Answer:-This question is answered by using the simple concept of molarity using the simple formulas…

Q: What is the concentration in molarity of an aqueous solution which contains 39.91% by mass propylene…

A:

Q: Unit 4: 1. Calculate the molar concentrations for the following solutions: a) 23.5g of NaCl is…

A: To solve this problem we will use the formula  Molar concentration = number of moles of Solute /…

Q: Calculate the molarity of 0.850 mol of Na, S in 1.15 L of solution. molarity: Calculate the molarity…

A: Molarity is defined as Number of moles of solute dissolved per Litre of solution.  And Number of…

Q: Molarity! A solution is prepared by dissolving 20.0 g of Chloroform (CHCl3) in 60.0 gram of benzene…

A:

Q: What is the mass % of acetonitrile in a 2.17 M solution of acetonitrile (MM = 41.05 g/mol) in water?…

A: The mass percentage of  acetonitrile can be calculated by using Following formula - Molarity=mass %…

Q: An aqueous solution of HNO3 was prepared having a molality concentration of 6.29. (Atomic…

A: according to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: What is the concentration in molarity of an aqueous solution which contains 33.41% by mass…

A: Recall the data, Percentage by mass of isopropanol=33.41 % MM=60.10 g mol-1 Density of 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.