ality al, g. on te ew led ed in X= A solution was prepared by dissolving 140.0 g of KCl in 315 g of water. Calculate the mole fraction of KC1. (The formula weight of KCl is 74.6 g/mol. The formula weight of water is 18.0 g/mol.) Express the mole fraction of KCl to two decimal places. View Available Hint(s) Submit 15. ΑΣΦ Part B - Use the definition of molality 001 mol/ka 12 of 33 ? P Pearson Review I Constants I Periodic Table A solution was prepared by dissolving 140.0 g of KCl in 315 g of water. Calculate the molality of KCL. (The formula weight of KCl is 74.6 g/mol. The formula weight of water is 18.0 g/mol.) Express the concentration of KCl in molality to two decimal places. View Available Hint(s) >

Q: show by calculation how could you prepare 500 ml of 0.3N H3PO4 from its concentrated solution has…

A: Molarity is defined as the number of moles of solute in a liter of solution. It is a way to…

Q: A solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute,…

A: Given: The mass of NaCl = 40.00 g The volume of the solution = 1 L Temperature = 25 °C The…

Q: Commercial nitric acid is 16.0 M HNO3(aq) and has a density of 1.42 g mL-1. What is the mole…

A:

Q: A soft drink is made by dissolving CO2 gas at 3.60 atm in solution at 20oC. What amount (in moles)…

A:

Q: At 25C, the partial molar volumes of ethanol and water in a mixture 12 per cent by mass ethanol are…

A: We must take into account the separate volumes of ethanol and water as well as their relative masses…

Q: If one mixes 50cm³ of EtOH and 50cm³ of H2O at room temperature; will the total volume of the…

A:

Q: Calculate the masses of oxygen and nitrogen that are dissolved in 1.5 L of aqueous solution in…

A: To solve this problem, we will use Henry's law, which relates the partial pressure of a gas above a…

Q: Consider silicon with a phosphorus impurity concentration of N = 10 cm Determine the percent of…

A: Solution: Here are the expressions we will be using to find the percent of ionized phosphorus atoms;

Q: Calculate the concentration of chloromethane (CH;CI) in water (mg/L to four significant figures) if…

A: Gas concentration = 0.25 % Lets total pressure = 1 atm As percent of concentration is similar in…

Q: v21 Online te X Co. How to Calculate N NSU Login | North X bAer X S PeriodicTableofthe M Action…

A: Using ideal gas equation for N2O PV = nRT P= 10.9 atm V= 4.00 L T= 298 K R= 0.08206 atm.L/ mol.K n=…

Q: When 71 g of Na2SO4 (FW 142 g/mol) is dissolved in 0.250L of water (MW 18.02 g/mol), what is the…

A: The mole fraction of sulphate ion can be calculated as follows

Q: Alt Hll. calculate the mass peizcentage Naz sOg in a 7g of SOg in lof salution Containing 413 of…

A: Given that: Mass of Na2 SO3 = 11.7 g Mass of water = 443 g  Total mass of solution = mass of water +…

Q: solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute, in…

A: Given : Mass of solute = 40g Density = 1.000g/ml

Q: At an air-water interface, fatty acids such as oleic acid liein a one-molecule-thick layer…

A: First the moles of oleic acid is calculated as shown below,

Q: solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute, in…

A:

Q: Ksp = 1.6 x 10-4⁹ for Ag₂S at 25 °C, what is the molar concentration of Ag* at 25 °C? M (example:…

A: Ksp for Ag2S = 1.6 × 10-49molar concentration of Ag+ = ? Mmolar concentration of S2- = ? M

Q: Determine the mole fraction of acetone in a 1.00 m solution of acetone (CH3COCH3) dissolved in…

A: Given-> Molality = 1.00 m Density of acetone = 0.788 g/cm3 Density of ethanol = 0.789 g/cm3

Q: Q: The Soluibility of GaC13 is 0.004M. What is the Ksp? * O 7E-9 O 9 E-9 O 4.7 E-10 O 2.8 E-9 O Does…

A: The solubility product is simply defined as the product of the concentration of ions in a saturated…

Q: 0.456 L of a 2.2 M KCl solution Express your answer using two significant figures. • View Available…

A:

Q: pack of this book and solutions in the Studerit Solutions Guide, U.30 mole III Boldface. State…

A:

Q: Some water dissolves in liquid methane at -161°C to givea solution in which the mole fraction of…

A: Given: Temperature = -161°C Mole fraction of water (χwater) = 6.0×10-5 Volume of solution (V) = 1.00…

Q: A solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute,…

A: Given : Mass of solute = 40g NaCl (f.w. = 58.44 g mol–1) Water (m.w. = 18.02 g mol–1) Volume of…

Q: Arterial blood contains about 0.25 g of oxygen per liter at 37°C and standard atmospheric pressure.…

A: At constant temperature the solubility of gas in a liquid varies directly with the pressure of gas…

Q: Ksp = 1.3 x 10-32 for Ca3(PO4)2 at 25 °C, what is the molar concentration of Ca²+ at 25 °C? M…

A: In this question, we are dealing with the solubility product constant (Ksp) for Ca3(PO4)2 and its…

Q: À 10.00 ml sample with an unknown concentration of RNU, Was additional 2.4 g of KNO, were added to…

A:

Q: A solution is prepared by dissolving 40.00 g of NaCl (f.w. = 58.44 g mol–1), a non-volatile solute,…

A:

Q: (1) release the A certain species of trout requires dissolved oxygen of 7.5 mg/L. Would it be wise t…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: Q1) A bottle of concentrated HCI has the following information on its label: GFW= 36.5, Sp.gr= 1.18…

A: Formula is N = %w/W × 10 x sp.gr /GFW  Where  % w/w = 40  Sp.gr = specific gravity = 1.18  GFW =…

Q: S Write electro X 6 uzdLQYhAS) X G Predict the t X O Periodic Tab x b Answered: [ X mySigTau x M (no…

A: The required   reaction is H2O(g)→2H(g)+O(g)therefore standard enthalpy of reaction…

Q: e law of molar concentration above, O=16 H=1

A:

Q: 1-If 5.06 g of KNO3 is dissolved in 10.00 g water at 31 C°, then the solubility of KNO3in water is…

A: Given, The amount of KNO3 ( potassium nitrate) = 5.06 g The amount of H2O (water) = 10.00 g…

Q: The Henry’s law constant for CO2 in water at 25 °C is3.1x 10-2 M atm-1. (a) What is the solubility…

A: (a)Given, Henry’s constant for CO2 in water = 3.1*10-2M/atm. The mole fraction of CO2 in air is…