Find the molality of 40g of calcium carbonate in 1900g water.

Q: What is the molality of 50.0 grams of KBr compound dissolved in 900.0 mL water.

A: We have to find the number of moles of KBr. As , Molality = Moles of soluteMass of the solvent (in…

Q: When 257. mg of a certain molecular compound X are dissolved in 70.0 g of cyclohexane (C,H,2), the…

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Q: K,= 2.57 °C kg mol for a certain subs 20 colution freezes at 5.7 °C. Calculate the freezing point of…

A: At freezing point of liquid there exists equilibrium between solid particles and solvent phase.…

Q: The density of pure acetic acid is 1.05 g/mL. If a 1.80 molal solution of NaCl-acetic acid was…

A: Molality(m) of a solution is defined as the number of moles of solute present in the 1 kilogram of…

Q: What is the molality of a solution in which 12 g of NaCl is dissolved in 19 Kg of water?

A: Molality: It is the amount of solute that is present per kilogram of a solution. In mathematical…

Q: What is the molality of a solution prepared by dissolving 15.1 g of potassium nitrate in 250. g of…

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Q: A student dissolves 3.7 g of glucose (C,H,0) in 100. mL of a solvent with a density of 0.87 giml.…

A: Given: The given mass of glucose,(Wb)=3.7 g The molar mass of solvent, (Mb)=180 g/mol. The volume of…

Q: solution containing 12.0 mmol CaCl2.2H2O is diluted to 1 L. Calculate the number of grams of CaCl2…

A: Given values mmoles of CaCl2 = 12.0mmol = 0.0120 mol Molar mass = 111g/mol Mass of CaCl2 =…

Q: If the mole fraction of C*H_{3} * O * H in a solution with only water is 0.0250, what is the…

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Q: alculate the molality of a 0.898 M ethanol (C2H5OHC2H5OH) solution whose density is 0.429 g/ml.

A: Molality(m):It is defined as number of mole of solute dissolved in per  kilogram of solvent.…

Q: Calculate the molality of a solution that contains 70g naphthalene C10H8 in 100 g of water. The…

A: Given :-  Mass of naphthalene = 70 g  Mass of water = 100 g  To calculate :-  Molality of solution

Q: When 541. mg of a certain molecular compound X are dissolved in 75. g of dibenzyl ether…

A: Here we are required to find the molar mass

Q: A student dissolves 19. g of aniline (C H,NH,) in 350. mL of a solvent with a density of 1.13 g/mL.…

A: We have given that 19 g of aniline dissolves in 350 mL= 0.350 L of a solvent To find out molarity…

Q: Predict the freezing point of a solution prepared by dissolving 8.9 g MgCl2 in 98 g H20. Kf for…

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Q: When 4 g of a sample are dissolved in enough benzene to give 2 L of solution the osmotic pressure is…

A: Given that -  Weight of sample = 4 g  Volume of solution = 2 L  Osmotic pressure = 3.2 torr…

Q: 2. What is the molality of a solution made by dissolving 12.5 g NaCl in 1 L of H2O?

A: Given,The mass of NaCl = 12.5 gVolume of the solution = 1 LConversion of grams of NaCl into moles: -

Q: How will the solubility of NaCl in water be affected by an increase in pressure?

A: Solubility is the amount of solute that gets dissolved in a given amount of solvent at a particular…

Q: 6 ST4E.1 - Calculate the boiling point temperature of phenol (in the Celsius scale) if 4.3 grams of…

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Q: 2.A solution that contains 12.6 g of a nonvolatile nondissociating solute in 400. g of benzene…

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Q: What is the molality (m) of a solution prepared by dissolving 78.0 g ethylene glycol, HOCH2CH2OH, in…

A: Molality is the way to express the concentration of any solution. It can be defined as the number of…

Q: A solution was prepared by dissolving 38.0 g of KCl in 225 g of water. Calculate the molality of KCl…

A: Molality of the solution can be determined using the equation given below:

Q: When 173. mg of a certain molecular compound X are dissolved in 100 g of cyclohexane (C6H12), the…

A: Answer:For a non-electrolyte and non-volatile solute dissolved in a solvent, depression in freezing…

Q: In a laboratory experiment, the freezing point of an aqueous solu- tion of glucose is found to be…

A: ∆Tf = i × kf × m  where ;  ∆Tf is freezing point depression i is van't hoff factor  Kf is freezing…

Q: 4. A solution is prepared by mixing 1 gof ethanol (C,H&O) with 100 g water to give a final volume of…

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Q: The boiling point of an aqueous solution is 101.18 ∘C. What is the freezing point?

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Q: What mass of H2O (in grams) is needed to dissolve 6.03 g Li3PO4 to produce a solution having a…

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Q: General Chemistry ----------------------- (a)  A 10.0 percent solution of sucrose (C12H22O11) in…

A: From any mode of concentration we can calculate the molarity molality .

Q: Determine the molality and molarity of a solution prepared by dissolving 75.0g Ba(NO3)2(s) in to…

A: GivenMass of Ba(NO3)2 = 75.0 gMass of water = 374 g

Q: 4. What is the molality (m) of a solution prepared by dissolving 78.0 g ethylene glycol, HOCH,CH,OH,…

A: The molality (m) of a solution is expressed as :

Q: What is the molality of the solution prepared by dissolving 78 g ethylene glycol in 1500 g of water?

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Q: A certain substance X has a normal freezing point of 4.7 °C and a molal freezing point depression…

A: Given : data  Tip: apply equation of depression in freezing point

Q: An aqueous solution is prepared by diluting 3.30 mL acetone (d = 0.789 g/mL) with water to a final…

A: Given. The volume of acetone is 3.30 mL. The volume of final solution is 75.0 mL. The density of…

Q: What is molality of a solution prepared by dissolving 20g MgCl2 in 250 g water?

A: We have to calculate the molality of solution.

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: an aqueous solution of ethanol, C2H5OH, is 19% ethanol by mass and has a density of 0.97 g ml ^-1.…

A: Assuming 1 L i.e 1000 mL of solution. Given : Mass percent of ethanol = 19 % And density of solution…

Q: I'm not sure how to answer this one.

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Q: The normal freezing point of a certain liquid X is 0.60°C, but when 0.14 kg of barium hydroxide…

A: Given : Mass of barium hydroxide, Ba(OH)2 i.e solute = 0.14 Kg = 140 g         (since 1 Kg = 1000 g)…

Q: When 224. mg of a certain molecular compound X are dissolved in 45.0 g of cyclohexane (C6H₁2), the…

A: As we know,  Depression in freezing point,    Tf° - Tf = i * Kf * mWhere Tf° & Tf are freezing…

Q: In a laboratory experiment, students synthesized a new compound and found that when 14.61 grams of…

A: The objective of this question is to determine the molecular weight of a compound given the osmotic…

Q: b) 28 g C6H12O6 is  dissolved in 235 g of water. Find out the molality of the solution. (b1) no of…

A: Given, amount of C6H12O6 =28 gramamount of water =235 gramwe are asked to calculate the number of…

Q: molar mass

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Q: When 605. mg of a certain molecular compound X are dissolved in 100 g of cyclohexane (CH₂), the…

A: GivenWeight of unknown compound X = 605. mg = 0.605 gWeight of solvent = 100. gFreezing point of…

Q: Throat spray is used in relieving pain and imritation caused by sore throat, sore mouth, or canker…

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Q: What is the molecular formula of the compound (which contains only carbon, hydrogen, and oxygen)?

A: Calculation of concentration of unknown compound π = CRTπ = Osmotic presureR = 0.08314 L.bar…

Q: initial mole fraction

A: Molar mass of NaCl=58.44 Molar mass of water=18g Mole fraction of each solute = Number of moles of…

Q: Determine the molality of a 6.930 wt % aqueous solution of LiCl

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Q: The molality of a sugar solution (C6H1206) is 2.94 m. How many total ions does C6H1206 break into…

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Q: 100 90 NANO 80 70 60 CaCl 50 Pb(NO)2 40 NaCl KCI 30 20 KCIO, 10 Ce,(SO) 0 10 20 30 40 50 60 70 80 90…

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