What volume of ethanol in milliliters (density = 0.7893 g/cm3) should be added to 427 mL of water in order to have a solution that freezes at –19.2°C? (For water, Kf = 1.86 °C/m.)

Q: A substance has a solubility of 12.5 g per 100 mL of solvent at 100°C and 2.45 g per 100 mL solvent…

A: Given, At 100°C Solubility of of substance is 12.5 g per 100 mL of solvent At 10°C Solubility of of…

Q: What mass of NaCl would you need to add to 1.00 kg of water to achieve a freezing point of 5 degrees…

A: We have asked to find what mass of NaCl will be required to add to 1.00 kg of water to achieve a…

Q: The solubility of NaCl is 40.0 g NaCl in 100 g water. Which of the following concentrations would…

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Q: non ionizing solid dissolved in water changed the freezing point to -2.79 degrees celsius. Calculate…

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Q: molecular mass of a substance if 22.5 g dissolved in 250 g of water produces a solution whose…

A:

Q: When a 4.25 g sample of solid ammonium nitrate dissolves in 60.0g of water in a calorimeter, the…

A: Mass of NH4NO3 = 4.25 g Number of moles of NH4NO3 = mass/mol.wt. = 4.25 g/(80.04 g/mol) = 0.053098…

Q: 5.57 grams of urea were added to 57.13 mL of water at an initial temperature of 18.09ºC. After the…

A: Interpretation - To determine the total mass of solution when 5.57 grams of urea were added to 57.13…

Q: At 20 °C, sugar has a solubility of 203.9 g, how much water we need at minimum to dissolve two (2)…

A: Given, At 20 °C, sugar has a solubility of 203.9 g, The minimum amount of water need  to dissolve…

Q: Which of the following is a way of conserving water? Leave the shower running while soaping Use a…

A: Correct Answer is option (D)

Q: 2.91 moles of silcon dioxide (SiO2) are dissolved in a 1.93 kg aqueous solution. What are the ppm of…

A: Given,  1. Moles of SiO2 = 2.91 mole  Mass of solution = 1.93 kg  What are the ppm of SiO2 in this…

Q: Calculate the heat of solution if 5.0 g of benzoic acid, C6H5COOH, is dissolved in 45.0 g of water…

A: Heat change of the reaction is measured as  q = m*c*∆T Where  m = mass of water (g) c = specific…

Q: 400 g of a 12.0 % aqueous solution of sucrose?

A: Solution are described other than molarity, molality by using weight percentage too.  Weight…

Q: The Earth’s oceans have a salinity of 35. What is the concentration of dissolved salts in seawater…

A: Given that salinity of earth’s ocean is 35. Thus, mass of salt in one kilogram of water is 35 g and…

Q: How many grams of ethylene glycol (C2H6O2) must be added to 1000. g water to create an automobile…

A: Colligative properties: The properties which depend on the ratio of the number of moles of the…

Q: Normal saline is 0.920% (w/v) NaCl in water. How many grams of NaCl are needed to prepare 15.0 L of…

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Q: The following information are given for aqueous solutions of solid Y: - If solid Y is dissolved in…

A: Given solubility of Y at 25oC = 30g Y/ 100 g H2O           solubility of Y at 15oC = 40g Y/ 100 g…

Q: A saline solution used in itravenous drips for patients who cannot take oral fluids contains 0.92%…

A:

Q: The solubility of magnesium chloride in water is 54.3 g/100 mL of water at 20 C. If you have a…

A: Amount of magnesium chloride soluble in 100 gm water = 54.3 gm  Amount of magnesium chloride soluble…

Q: Which is colder, dry ice (solid Co2) subliming -78.5°F or ethyl alcohol freezing at 179°F?

A: Sublimation is the transition of a substance directly from the solid to the gas state, without…

Q: A 75.0 grams of MgCl2 is dissolved in 500.0 g of water. Calculate the molality of the solution. a)…

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Q: What mass of solute could be obtained by evaporating 350mL of a 1.75mol/L solution of NaCl?

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Q: At 50°C, 100g of Sodium nitrate (NaNO3) is dissolved in 100 g of water. Is this solution saturated,…

A: Saturated Solution - this solution contains the maximum amount of dissolved solute for a given…

Q: A student is asked to make up 100.0 g of a 26 % (w/w) sucrose solution. The students weighted out 26…

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Q: A solution is made using 130.1 mL of acetonitrile (density 0.7766 g/mL) and 250.0 mL of water…

A: Step 1: Calculating the moles of solute( acetonitrile) .  Step 2: Calculating the mass of the…

Q: The solubility of lead nitrate at 100 degrees Celsius is 140.0g/100g water. A solution at 100…

A: Solubility of Pb(NO3)2 at 100˚C = 140.0 g/100 g water Considering solubility to be 44 g in 38.0 g of…

Q: If 18 grams of KCl are added to 100 grams of water at 80 degrees Celsius, how much more must be…

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Q: substance has a solubility of 12.5 g per 100 mL of solvent at 100 degrees celsius and 2.45 g per 100…

A: Given : solubility of substance at 100 °C = 12.5 g/100 ml  Solubility of substance at 10°C = 2.45…

Q: The boiling point of pure water in Winter Park, CO ( elev. 9000 ft) is 94°C. What is the boiling…

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Q: Explain why aquatic species are more comfortable in cold water rather than in warm water.

A: Given Explain why aquatic species are more comfortable in cold water rather than in warm water.

Q: A student dissolved 5.00 grams of ammonium chloride in 95 mL of water. The water temperature went…

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Q: 3. Will 70 grams of HCI at 80°C in 100 g of H20 be saturated, unsaturated, or supersaturated?…

A: Solute dissolves in solvent to get the solution. The extent with which the solute dissolves in a…

Q: small.unt of sodium chloride (NaCl) is dissolved in a large amount of water. Imagine separating this…

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Q: 1. The solubility of sucrose at 20 C is 200 g in 100 ml of water. Determine whether the given $ 200…

A: To find: Classification of given solution as saturated, unsaturated and super saturated.

Q: 4. The oxygen atom of water is covalently bonded with the two hydrogen atoms in a water molecule. 5.…

A: Given,

Q: 2. An unknown solid Y was dissolved in water resulting to a decrease in temperature of its…

A:

Q: What mass of ethylene glycol (C2H6O2, molar mass = 62.1 g/mol), the main component of antifreeze,…

A: Given data, molar mass of ethylene glycol  = 62.1 g/mol volume of water is 8.5 L  density of water…

Q: A student mixes 20.0 g of a salt in 100.0 g of water at 20 °C and obtains a homogeneous solution.…

A: Solubility of a solute in a solvent is defined as the maximum amount (mass) of solute dissolved in…

Q: Vitamin C packet is added to a glass of water containing 770.0 mL of water. The Vitamin C packet…

A: Mass of vitamin C = 1000 mg = 1gm Volume of water = 770 ml  Density of water = 1.00 g/ml Weight of…

Q: What are the essential requirements of domestic water? Enumerate the various steps involved in the…

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Q: 75 g of KCl is dissolved into 500 g of water. What is the freezing point of the solution in units…

A: Given, mass of KCl = 75 g            mass of solvent ( water) = 500 g = 0.500 kg We know that,…

Q: 1. The enthalpy change associated with forming a solution is represented by the following equation…

A:

Q: Q1. Write any 4 properties of gases and liquids.…

A: Properties of gases:- Low Density. Gases contain scattered molecules that are dispersed across a…

Q: 10. A physician orders magnesium sulfate to be administered at a rate of 2 g/h to a patient…

A: The solution given here is 500 ml of 2% magnesium sulphate.2% solution means 2g of MgSo4 is present…

Q: Which solute-solvent pair would you greatest solubility? butter in oil butter in water C grease in…

A: The solubility of a substance depends on the nature of the solute and solvent. The thumb rule of…

Q: 1a. Medical saline typically consists of 4.50 g of NaCl in 500.0 mL of solution. What is the…

A: Given: Amount of NaCl =4.50 g Volume of Solution = 500.0 mL To determine i) Molarity of Solution ii)…

Q: 1) How many grams of antifreeze (HOCH2CH20H) would have to be added to 15.0 kg of water in a truck's…

A: Freezing point of pure water = 0°C Freezing point of solution = -20°C Mass of water = 15.0kg

Q: 6.55 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee cup…

A: Total mass of the reactant is given as: m=150.0 g water + 6.55 g sample=156.55 g Change in…

Q: Carbon dioxide gas will dissolve (or stay dissolved) in water when pressure is (high or low?)  .…

A: The solubility of a gas in a liquid increases with increase in pressure of the gas . The…

Q: A student dissolves 5.2g of ammonia NH3 in 450.mL of a solvent with a density of 1.05 g/mL. The…

A:

Q: Ethylene glycol (EG), CH₂(OH)CH₂(OH), is a common automobile antifreeze. It is water soluble and…

A:

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.