Formaldehyde (CH2O, MM = 30.03) has a multitude of uses including tissue preservation. Formalin is a commercially available solution of formaldehyde and has a concentration of 19.6 m formaldehyde and a density of 1.09 g/cm3 . What is the molarity of formaldehyde in the solution?

Q: "How many mL of a 0.215 M aqueous solution can be prepared from 38.1 g of urea, CO(NH2)2? Make sure…

A: Mass of urea = 38.1 g Molarity of aqueous solution = 0.215 M

Q: OA 12.0 % (w/w) aqueous solution of acetone has a density of 0.984 9 g/mL at room temperature. Pure…

A: Given data weight % of Acetone in solution = 12.0 % density of solution : ρsolution=0.9849 g/mL…

Q: Some people have begun to formulate their own window-cleaning solutions using commonly available…

A:

Q: An aqueous solution of CaClz weighs 6.6 kg. The solution has 4.7 moles of CaClz present in it. The…

A: Given :  Mass of solution  = 6.6 kg = 6600 g  Density of solution= 1.35 g/ml  Moles of CaCl2 = 4.7…

Q: What is the boiling point of a solution prepared by dissolving 124g of octasulfur (Sg. Molar mass =…

A: Weight of octasulfur=124g Molar mass=256.5 g/mol  Weight of CCl4=955g= 0.955 Kg Kb=5.05°C/m  Boiling…

Q: An aqueous solution of CaCl2 weighs 6.3 kg. The solution has 8.5 moles of CaCl2 present in it. The…

A:

Q: Molecular Weight of Zinc Sulfate Heptahydrate 287.6 g/mol 7.199 Mass of Zinc Sulfate Heptahydrate…

A: Molar concentration (also known as molarity, quantity concentration, or material concentration) is a…

Q: An aqueous solution of potassium sulfate, K2SO4 , is made by dissolving 15.1 grams of potassium…

A: Given: Mass of K2SO4 = 15.1 g. And volume of solution filled = 250 mL = 0.250 L…

Q: 1. What is the molarity of a solution containing 5.3 g H3PO4 added with enough water to have 500 ml…

A:

Q: 30.0 g solute in 0.275 M NaF V= B. 30.0 g solute in 0.275 M CdCl2 V= C. 40.0 g solute in 0.460…

A: Given Solute Weight Concentration NaF 30 g 0.275M CdCl2 30 g 0.275M K2CO3 40 g 0.460M Fe…

Q: What is the boiling point of a solution prepared by dissolving 251 g of octasulfur (Sg, Molar mass =…

A:

Q: Calculate the mass percent of a NaCl solution in which 189 g of NaCl is dissolved in 4.69 L of water…

A: Given that, Mass of NaCl to be dissolve in water m1  = 189 g Volume of NaCl solution in water m2 =…

Q: Calculate the molarity and normality of the solution having a density of 1.90 g/cc and is 15% m/m…

A: The solution of the question is given below:

Q: (a) At a temperature of 45 ºC, will a solution made with 13.37 g KNO3 in 15.0 g water be saturated…

A: A). According to the solubility chart, At 45 °C  mass of KNO3 soluble in 100 g of water = 71 grams.…

Q: What is the new mass/volume (m/v)% of a KOH solution that is prepared by diluting 115 mL of a 6.3 %…

A: Given that: Initial concentration of KOH solution C1 = 6.3%(m/v)  V1 = 115ml Final volume (V2) =…

Q: What is the molarity of a solution prepared by dissolving 53.2 g of a soluble salt, MX2, where M is…

A: Mass = 53.2 g Molar mass = 92.38 g/mol Volume = 1.2 L  Molarity = ?

Q: A 0.80 mL of the stock aspirin solution that has been prepared from your crushed aspirin is diluted…

A: we can define molarity as moles of solute upon volume of solution

Q: Glucose (C6H12O6) stock solution is prepared by weighing 0.1232 g standard and diluting it to 100.00…

A: Given;

Q: a slotutipn of hydrochloric acid in water is 60.0% hcl and 40% water h20, by weight . the solution…

A: To calculate the concentration of a solution some units are used, One of the most used measurement…

Q: To what volume should you dilute 150.0 ml of an aqueous 6.00 M iron (II) bromide solution so that…

A: We are required to find out the volume to which 150.0 mL of 6.00 M of Iron(II) bromide solution is…

Q: In the laboratory you dissolve 13.4g of lead (II) acetate in a volumetric flask and add water to a…

A: Given:Mass of lead (II) acetate = 13.4 g.Volume of solution = 250 mL = 0.250 L.Molar mass of lead…

Q: A student dissolved 13.0g of Calcium Nitrite in 150.0mL of water. What is the molarity, M, of the…

A: Answer

Q: Q15) When a person is given intravenous fluids, the concentration of the dissolved substance in the…

A: Calculate as we calculate osmotic pressure.

Q: a stock solution of sodium chloride solution was prepared ( at 25C) by dissolving 250 mg of sodium…

A:

Q: Water and acetonitrile, CH3CN, are miscible (can be mixed in any proportions). However, when water…

A: (a) This phenomenon is called negative deviation from Raults law. here the attraction between pure…

Q: Calculate the molarity of 121 grams of sucrose, C12H22011, in 2.10 liters of solution. M sucrose

A: Molarity (M) :  Number of moles of solute (n) present in 1 litre solution  M = n / V(in L)   M = n…

Q: Calculate the molarity of a 91.9 wt% solution of H2SO4 with a solution density of 1.61g/ml.

A: The number of moles of sulfuric acid present in the given weight percent is calculated as

Q: Tryptone Soya agar (TSA) is an all-purpose medium that contains 0.65% (m/v) NaCl. What is the molar…

A:

Q: Goslarite, a hydrated zinc sulfate mineral (ZnSO4 7H20). is added to 1.7 L of water to form a zinc…

A: Calculate the molar mass of Goslarite is as follows: ZnSO4 7H20 = Zn + S +4*O +7(H2O)…

Q: An solution of antifreeze is prepared by mixing 22.0 mL of ethylene glycol (density= 1.11 g/mol;…

A:

Q: An aqueous solution of Caclz weighs 7.8 kg. The solution has 8.3 moles of CaClz present in it. The…

A: Given:- Weight = 7.8Kg Moles of CaCl2 present = 8.3 Density = 1.35g/ml Moalar mass of Ca = 40g/mol…

Q: Calculate the molarity of a solution prepared by diluting 100 cm3 of H3PO4 (d= 1.75 g/mL and 89 %…

A: Interpretation -  To determine the molarity of a solution prepared by diluting 100 cm3 of H3PO4 (d=…

Q: A 500.0-mL solution was prepared by dissolving 25.00 mL of methanol (CH3OH, density 5 0.791 4 g/mL)…

A: The given data contains,  Volume of solution =500 ml Volume of methanol=25 ml Molar mass of…

Q: The weight of NaCl in a 0.5 M solution of Volume 1800 ml is 0.9 g 900 g 90 g 40 g

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

Q: A solution is 21.4% (v/v) Br2 and has a density of 1.18 g/mL. What mass of this solution is needed…

A: Given,  Density of solution = 1.18 g/mL  21% (v/v) is Br2 in the solution .  Total amount of  Br2 in…

Q: The density of commercial concentrated HNO3 is 1.41 g/mL The concentrated acid contains 69% (w/w of…

A:

Q: A solution of ethanol (C2H5 OH) in water is prepared by dissolving 85.0 mL of ethanol (density =…

A: Given :-  volume of ethanol = 85.0 mL  density of ethanol = 0.79 g/cm3  volume of solution = 350.0…

Q: Erucic acid, CH3(CH2,CH-CH(CH211COOH, is commonly found in rapeseed oil. If 8.77 grams of the acid…

A: Consider the given information is as follows; Mass of Erucic acid = 8.77 g Volume of water = 100 mL…

Q: 1. What is the molarity of an aqueous solution containing 22.5 g of sucrose (C12H22011) in 35.5 mL…

A:

Q: In the case study “An aqueous apocalypse”, the concentration of ammonia in the white river sample…

A:

Q: A diluted solution of sulfuric acis , H2SO4, has a density of 1.523 g/mL. The solution contains 50.0…

A: We will first calculate the number of moles of solute, then volume of solution. Finally find…

Q: Concentrated’’ sulfuric acid solution is 95% sulfuric acid by mass (and the remainder water) and has…

A:

Q: 1) KOH and NaOH are dissolved in water to form a 2.48 molar solution. If 42.9 g of NaOH are used and…

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

Q: Find %mass of solute X in a solution made of 17 g(X) and 168 g of solvent: %mass X = ____ g(…

A: Answer: % mass of solute X in the solution is 9.2 %

Q: the Molarity of glucose solution after dilution?

A: A standard solution of glucose of volume 3000 ml having Molarity 1.2 M was prepared in the chemistry…

Q: An aqueous solution of CaCl2 weighs 6 kg. The solution has 3.7 moles of CaCl2 present in it. The…

A: The given information is as follows: The mass of the solution = 6 kg = 6000 g The moles of solute…

Q: Calculate the percent mass per volume, % (m/v), of a dextrose solution containing 8.00 g8.00 g of…

A: Mass per volume percentage concentration is defined as the mass of the substance in grams dissolved…

Q: An aqueous solution of CaClz weighs 6.6 kg. The solution has 4.7 moles of CaClz present in it. The…

A: Molar mass of H = 1 g/mol Molar mass of O = 16g/mol Given:-  Weight of solution = 6.6Kg = 6600g…

Q: Concentrated’’ sulfuric acid solution is 95% sulfuric acid by mass (and the remainder water) and has…

A: