How many grams of NaBr are needed to prepare 16.8 g of 6.89% (w/w) NaBr solution in water? How many grams of water are needed? How many milliliters are needed, given that the density of water at room temperature is 0.988 g mL1? mass of NaBr = i mass of water = i g volume of water = i mL Attempts: 0 of 15 used Submit Answer Save for Later .. MacBook Air DII DD 888 FB FO F10

Q: zing point of water is 0.00 °C at 1 atmosphere. A student dissolves 10.57 grams of copper(II)…

A:

Q: QUESTION 14 What is the solubility of O2 in water at 50 °C when the pressure of air is 1 atm.?…

A:

Q: What is the pressure of the solution when 25.28 g KNO3 is added to 250. mL of H₂O at 40 °C? PH₂0,50…

A:

Q: What mass of cesium bromide must be added to 0.500 L of water (d=1.00 g/mL) to produce a 0.817 m…

A:

Q: A 100.0-mL aqueous sodium chloride solution is 13.8% NaCl by mass and has a density of 1.12 g/mL. ▼…

A: The volume of the solution = 100.0 mLThe density of the solution = 1.12 g/mLThe mass of solute…

Q: pd MM (g/mol) density entane (CSH12) 72.150 0.626

A:

Q: Find the Molarity and Normality of NaCI (Mwt=58.5 gm/mol) if you Know the percentage (w/w) of KCI is…

A: Normality = n factor × Molarity If n factor is one then Molarity and normality will be same.

Q: Calculate the amount of solute needed to prepare the following solutions. Express your answer using…

A:

Q: ease do D an

A: The boiling points of the solutions are calculated by using the elevation in boiling point: ∆Tb=Kb×m…

Q: 9) A solution is prepared by mixing 100.0 g of water, H20, and 100.0 g of ethanol, C2H5OH. Determine…

A:

Q: A solution contains 10.0 g pentane, CSH12, 10.0 g hexane, C,H14 and 10.0 g benzene, C.H6. What is…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: solution whose freezing point is -0.930°C is the boiling point of a solution made by g 31 g of NaCl…

A: The number of moles of a substance is determined as the mass of that substance upon its molar mass.…

Q: The freezing point of water is 0.00 °C at 1 atmosphere. How many grams of sodium acetate (82.04…

A: Properties of a dilute solutions which depend only on the number of solute particles present in a…

Q: What is the percent concentration by mass of NaCl in a 200 g of solution that contains 0.390 mol of…

A:

Q: Calculate the amount of solution (g or mL) that contains each of the following amounts of solute.…

A: In this question we have to calculate the amount of Solution in g or mL unit which is given in (m/m)…

Q: A 15.0 % (w/w) NiCl2 solution has a density of 1.149 g/mL. Calculate the Molar concentration of 1L…

A: In this question we have to calculate the concentration of NiCl2 by the given data i.e 15% (w/w)…

Q: = 1. A solution is prepared by combining 12.3 grams of urea, a nonelectrolyte (MW = 60.06 g/mol) and…

A:

Q: What is the pOH of 500 mL of solution containing 0.533 grams of Ca(OH)2 (molar mass 74.09 g/mol at…

A: pH + pOH = 14

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: YouTube Мaps Classes What mass of NaNO3 should be dissolved in 45 mL of water so that the resulting…

A:

Q: How many grams of CaCO3 (FM 100.086) are needed to prepare 150.0 mL of an 80.0 ppm aqueous Ca²+…

A: The mass of solute in mg present in a one-liter solution is known as ppm (parts per million)…

Q: 5. What is the mole fraction of a solute in a 2.2 molal solution in which naphthalene (C10H8) is the…

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

Q: A solution is made using 56.9 g of hexane (MM = 86.18 g/mol) and 60.0 g of octane (MM = 114.2…

A:

Q: mass/volume

A: During the dilution , the number of moles remains constant and only concentration changes during the…

Q: Ethanol (C2H5OH): molar mass = 46.069 g/mol. Density of absolute (100 % v/v) ethanol = 0.7893 g/mL.…

A:

Q: 6. The freezing point of a solution of 1.048 g of an unknown nonelectrolyte dissolved in 36.21 g of…

A:

Q: In 400. g of water at 50 degrees Celsius, approximately what mass of substance C will dissolve?

A: AT 50o C 100 g of H2O dissolve 30g of substance C .

Q: What is the percent (%w/w) solution if you mix 130 g of NaOH (MM = 40.01 g/mol) pellets with 900 mL…

A: Given,mass of NaOH = 130 gmolar mass of NaOH = 40.01 g/molvolume of water = 900 mLdensity of water…

Q: How many moles of potassium carbonate are needed to make .20 L of a 2.5 M solution?   Equations- M =…

A: Given, Molarity = 2.5M Volume = 0.200L

Q: 2 attempts left Check my work Be sure to answer all parts. A solution contains 0.200 mol of NaCl…

A: Given that: Moles of sodium chloride in solution = 0.200 mol Moles of water in solution = 6.74 mol…

Q: At a certain temperature the vapor pressure of pure acetone ((CH,) CO) is measured to be 435. mmHg.…

A: Solution is made up of solute and solvent.Solute is present in small amount and solvent is present…

Q: Homework solutions for Chapter 11 21. At 0 °C and 1.00 atm, as much as 0.70 g of O2 can dissolve in…

A: When a solute is completely dissolved into the solvent, it forms the solution. Solute and a solvent…

Q: 7. What volume in Litres does 85.4 g of nitrogen gas occupy at SATP?

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: If 139 mg of NaCl (MM=58.44 g) is dissolved in 230.95 L of water. What is the concentration of Na+…

A: Given:- mass of NaCl = 139 mg = 139 × 10-3 g = 0.139 g Volume of water = 230.95 L Since density of…

Q: How many milliliters of hetastarch 10 % (w/v) solution and hetastarch 2.5 % (w/v) solution is…

A:

Q: A 75.6 mL sample of wet O2g) is collected over water at 21.4°C at a barometric pressure of 755. mmHg…

A:

Q: A solution is prepared by dissolving 20.5 g of NaOH in 130.0 g of water. The NaOH solution has a…

A: Given: Mass of solute, NaOH = 20.5 g Mass of solvent, water = 130.0 g Density of solution = 1.15…

Q: What is the molarity of an aqueous solution in which the mole fraction of the solute is 0.047?…

A: To find the molarity of the solution, we can use the formula:Molarity=  (Mole fraction of solute ×…

Q: A student is instructed to prepare a saline solution from CaC12. Calculate the mass of CaCl2 needed…

A: Given:  % m/m  of CaCl2 in solution = 8.55% Mass of CaCl2 solution= 42.5 g Required: Mass of CaCl2…

Q: What is the boiling point of a solution prepared by dissolving 370 g of sulfur (S8,  256.5 g/mol) in…

A:

Q: Given 8.00 g of HBr calculate the volume (mL) of a 48.0% (w/w) solution. (MW HBr: 80.9119 g/mol,…

A:

Q: Bam makes a second solution, adding 6.64 g of Co(CH3COO)2 to 42.51 mL of H20. Calculate the…

A: Given: Mass of Co(CH3COO)2 = 6.64 g And volume of water = 42.51 mL. Mass of water = density X volume…

Q: Determine the mass of sodium nitrate (NaNO3) that must be added to 450 g of water to prepare a 7.5%…

A: Density of H2O = 1 g/mL Density of NaNO3 = 2.26 g/mL The relation between density, d and mass, m is…

Q: Please answer subparts C AND D   C. An 80-proof brandy means that the brandy contains 40.% alcohol…

A: Note - In part C, since you have asked the millilitres of alcohol present in 750 mL of brandy, we…

Q: 14. What is the molecular mass of a substance if 22.5 g dissolved in 250 g of water produces a…

A:

Q: The solubility of N2in blood is a serious problem for divers breathing compressed air (78% N2by…

A: Henry’s law describes the relationship between particular gas's solubility and gas's pressure. At…

Q: What mass of MCl is needed to make 3000g of 30% solution? (MW: H= 1 , Cl= 35)

A:

Q: Macmillan Learning How many grams of chlorine gas are needed to make 5.70 x 106 g of a solution that…

A: