What volume of water must be evaporated tc increase the concentration of 2000mL solution containing 6.84 g of Al2(SO4)3 to 0.02 M?

Q: (a) Calculate the mass percentage of NaNO3 in a solution containing 13.6 g of NaNO3 in 834 g of…

A: Given: Mass of NaNO3 = 13.6 g Mass of water (H2O) = 824 g   Calculation for mass percent of NaNO3:…

Q: How many moles of Co2+ are present in 0.200 L of a 0.400 M solution of CoI2?

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Q: What was the vapor pressure of NH3 needed above 5.00L aqueous solution to get 10.0 mol of NH3 to…

A: The vapor pressure of pure water at 25 0C (P0) = 23.8 torr. The vapor pressure of solute = P The…

Q: Sulfuric acid is a solution of hydrogen sulfate, H2SO4, in water. When concentrated, it is extremely…

A: Given: The volume of the solution, (V)=25.0mL = 0.025 L. The given mass of H2SO4, (m)=44 g. The…

Q: 7. An aqueous solution has 0.0034 g of oxygen dissolved in 1000 g of water. Calculate the dissolved…

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Q: What is the concentration of ammonia in a solution made by dissolving 3.75 g of ammonia on 12.0 L of…

A: Molarity: The concentration for solutions is expressed in terms of molarity as follows,

Q: What type of intermolecular force causes the dissolution of RbBr in water? O dispersion forces O…

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Q: 17. Calculate the molar concentration of isopropanol in an aqueous solution that contains 3.00 g of…

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Q: You want to dissolve a lot of oxygen in water. Which of the following condition(s) will increase the…

A: In order to increase the concentration of dissolved oxygen in water, we have to increase the…

Q: To what volume should a 10.0mL stock solution of 5.0M Ca(OH)2 be diluted to make a solution with a…

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

Q: Calculate the molarity of a solution that contains 2.25 molof NaNO3 dissolved in 2.50 L.

A: Given data contains, Moles of NaNO3 is 2.25 mol. Volume of solution is 2.50L.

Q: A 1.0 L solution of 0.50 M H2SO4 is diluted to a new volume of 2.5 L. What is the concentration of…

A: The dilution is the process in which only solvent is added and the solute remains same. Hence, the…

Q: Calculate the molality, the molarity, and the mole fraction of NH3 in an 6.20 mass % aqueous…

A: Step (1) Mass % of ammonia = 6.20 % Mass of ammonia = 6.20 gm Mass of solution = 100 gm Mass of…

Q: Solution of barium chlorate by measuring out 17.1 g of barium chlorate into a 50 volumetric flask…

A: Mass of barium chlorate=17.1 g  Molar mass of barium chlorate = 304.23 g/mol Moles = Mass ÷  Molar…

Q: 1. Determine the number of grams of NaHCO; that are in 1.2L of a 3.2 M solution

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Q: 20. True/False: The solubility of most solid substances increases as the temperature increases.

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Q: نقطتان )2( Ethanol has percent concentration v/v equal to 30%, what the volume of water and volume…

A: 30 ml of ehanol

Q: Determine the mole fraction of CH3OH in a solution prepared by dissolving 36g of alcohol in 1000g of…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: Which condition(s) will increase the concentration of dissolved carbon dioxide (NO2) in water?…

A: The concentration or solubility of Carbon dioxide in water depend upon the following conditions: i)…

Q: Determine the mole fraction of CH3OH in a solution prepared by dissolving 36 g of alcohol in 1000g…

A: The mole fraction of any substance is defined as the ratio of the no of moles of that substance to…

Q: How many grams of KCL (MW = 74.5) are needed to prepare 250ml of a solution containing 37.5 mOsmol…

A: Osmolarity is defined as the number of osmol present per litre of solution. Given data,Molecular…

Q: A stock solution is prepared by adding 20 mL of 0.2 M MgF2 to enough water to make 80 mL. What is…

A: Given data,Volume of MgF2 solution is 20mL (V1)Concentration of MgF2 solution is 0.2M (M1)Water=80mL

Q: What is the concentration in molarity of a solution which is 11.09 %m/v octane (MM = 114.2 g/mol )…

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Q: The volume of a sample of pure HCl gas was 205 mL at 23°C and 171 mmHg. It was completely dissolved…

A: Calculate the number of moles of HCl by using ideal gas equation PV =  nRT where P is the pressure…

Q: Which condition(s) will increase the concentration of dissolved oxygen (O2) in water? I. Decrease…

A: we know the Henry's law: Henry's Law states that: The solubility of a gas in a liquid is directly…

Q: In which condition(s) will increase the concentration of dissolved oxygen (O2) in the water? I.…

A: Effect of temperature on solubility of a gas The solubility of a gas increases as the temperature…

Q: What is the concentration of magnesium bromide,

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Q: An ammonium sulphate solution with a concentration of 29% (w/v) was prepared. The molar mass of…

A: We have to predict the molar concentration of the solution.

Q: The maximum allowed concentration of chloride in a municipal drinking water supply is 2.50 ́ 102 ppm…

A: Given : The concentration of Cl- ion in ppm = 2.50 X 102 ppm = 250 ppm Assuming 1 L i.e 1000 mL of…

Q: Calculate the molarity of a 5-L solution that is formed by adding a 2.6 g of HCl in a certain amount…

A: The molarity is given as the no of moles of solute present in the total volume of solution in the…

Q: I dissolve 100 grams of CaSO4 in 100mL of water. What is the molar concentration of the resulting…

A: Given, mass of CaSO4=100 g volume of water =100 mL= 100×10-3L=0.1 L

Q: A sample of 7.92 g of Mg(OH)2 is added to 24.2 mL of 0.225 MΗΝΟ, . Part D How many moles of HNO3 are…

A: Given: Mass of Mg(OH)2 = 7.92 g. Concentration of HNO3 = 0.225 M And volume of HNO3 taken = 24.2 mL…

Q: Solve the question

A: Given that: Mass of ammonium sulfate, (NH4)2SO4 = 8.9 g Volume of solution = 2.35 L To calculate:…

Q: 15. What is the molar concentration of a solution that contains 42.3g of H2SO4 in 500.0mL of…

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Q: How many grams of Zn(NO3)2 are in 4.0 L of a 0.55 M solution

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Q: References A bottle of wine contains 12.2% ethanol by volume. The density of ethanol (C,H,OH) is…

A: Given that : % (v/v) of ethanol in wine = 12.2 % The density of ethanol = 0.789 g/cm3

Q: Calculate the molar concentration of a solution that contains 50g of potassium hydroxide KOH in 500…

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Q: C6H14 is insoluble in H₂O. In C5H12, this solute would be: A) More soluble B) Less soluble C)…

A: Solubility: The amount of solute present in a one-liter solution is known as solubility. The…

Q: Dilutions (M,V, = M,V,) A 0.50 M solution of sodium thiosulfate, Na,S,0, is used to create a more…

A: Dilution of solution from a higher concentration to lower concentration is converted using the…

Q: What is the boiling point of a 1.8 m Ca(NO3)2 solution?

A: The boiling temperature, Tb, of a 1.8 m Ca(NO3)2 solution is calculated as shown in equation (1)…

Q: What concentration in molarity is made by diluting 244 mL of 10.0 M HCl to 1.67 L?

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Q: A 12.5 g of sugar is added 150 mL of water. calculate the amount of sugar (CH12H22O11; molar…

A: GivenMass of sugar added = 12.5 gVolume of water = 150 mL = 150 * 10-3 LMolar Mass of sugar = 324.3…

Q: 6. A solution is 0.212 M in Ca(NO3)2. What is the Ca concentration? a. b. What is the NO3…

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Q: 1. [H2O2] – molar concentration of 3% m/v hydrogen peroxide solution The concentration of hydrogen…

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Q: What is the concentration (M) of sodium ions in 4.57 L of a 2.35 M Na3P solution

A: The moles of Na3P is calculated as follows,

Q: ميز هذا السؤال A 500 mL sample of waste water contains 26.1 µg of mercury, Hg. If the density of the…

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Q: if there is 19.7 mL of 1.7 M solution of lithium hydroxide used to prepare a solution with a…

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Q: 2.00 liters of ammonia at 30.0 °C and 0.200 atm is neutralized by 134 ml of sulfuric acid solution.…

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Q: Explain how Compound A and Compound B will dissolve in water using the correct vocabulary including…

A: compound A is Magnesium chloride which is an ionic compound formed by transfer of two electrons from…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.