A student has a solution that contains 20.6 mg of PNP (MW = 139 g mol-1) in 885 mL of 20.0 % ethanol.  Calculate the concentration of PNP in the solution (in µM).

Q: (a) If the molar solubility of Cd3(AsO4)2 at 25 oC is 1.15e-07 mol/L, what is the Ksp at this…

A: Molar solubility is represented as moleL mole = massmolar mass Molar mass of Y2(CO3)3 = 357.8384…

Q: A student weighs out 1.215 g of an impure KHP, dissolves the sample in 100. mL DI water and titrates…

A: kindly find the answer attached

Q: ma 2 12. 3.000 g BaCl₂.H₂O (molar mass=244.263 g/mol) was added to a solution of 100 mL of 0.050 M…

A: The question is based on the concept of solubility product principle.  It that states that when a…

Q: The Ksp value for Calcium Phosphate [Ca3(PO4)2] is 1.00 x 10-26 so calculate themolar solubility in…

A:

Q: Ibuprofen (also known as Brufen) is an analgesic (pain killer) and anti-inflammatory drug. It is a…

A: Answer: option D

Q: The magnesium content of a 100 ml sample of mineral water is analyzed. The Mg2+ in the sample…

A: PART-(a)•So finally according to question Mg+2 present as Mg2P2O7. •1 mole of Mg2P2O7  has 2 mole of…

Q: 25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

A: The question involves estimation of sodium hypochlorite present in the given bleach sample . we do…

Q: What is the cobalt(II) ion concentration in a solution prepared by mixing 449 mL of 0.358 M…

A: The balanced net ionic equation is  Co+2 (aq) + 2 OH– (aq) ---------> Co(OH)2 (s) Number of moles…

Q: A 1.000g sample of a mixture which contains only NaCl and KCl gave a precipitate of AgCl which…

A: When a mixture two soluble salts are mixed with a precipitating agent, the initial salts get…

Q: Barium sulfate is a contrast agent for X-ray scans that are most often associated with the…

A: Answer:- This question is answered by using the simple concept of calculation of molar solubility…

Q: Bleach is a solution of NaOCl. A 10.00 mL sample of bleach was diluted with 25.00 mLs of water and…

A: To calculate the molarity of the bleach solution (NaOCl), you can use the balanced chemical equation…

Q: The solubility product (Ksp) for Pb(OH)2 (s) is 2.5 x 10-16. What would be the quantity of…

A: KSP = SOLUBILITY PRODUCT KSP =[ Pb ]+2 [OH]-2

Q: 4- Prepare 0.1 M of HCI in 100ml of distilled water from 6N of HCI?

A: Molarity of a solution is the number of moles of solute present in one liter of solution. It is…

Q: The Kgp of Ca3 (PO,), is 1.3 x 10-26, Estimate the solubility of this salt in units of g. L-1. You…

A: Given: Ksp = 1.3 x 10-26

Q: 25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

A: Working formula Volume×Molarity = no of mmol The weight percent by Volume  = [(Mass of…

Q: NaCl is purified by adding HCl to a saturated solution of NaCl (317 g/L). When 28.5 mL of 8.65 MHCl…

A: Calculation of the molarity of the initial NaCl solution: M=317 g/L58.44 g/mol=5.424 mol/L…

Q: Three students studied the following solubility curve. 100 90 NANO, 80 70 60 CaCl 50 Pb(NO3)2 40 KCI…

A: According to the solubility curve given the volume of solvent taken is 100 mL . Given that 10g of…

Q: Calculate the mass of KC4H5O6 (mólmassi = 188,2 g/mól) you can dissolve in 300 mL of solution to…

A: KC4H5O6 -------> K+ + C4H5O6- At equilibrium :-.                       s…

Q: 6) In a titration experiment, a student finds that 25 mL of NaOH solution are needed to neutralize…

A: Given : Volume of NaOH solution required = 25 mL = 0.025 L                           (Since 1 L =…

Q: Calculate the concentration (in mg CaCO3/mL solution) if 250 mg of pure CaCO3 was dissolved in 1M…

A: CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g) no. of moles of Ca2+ = (250 / 100) = 2.5 mol…

Q: If the concentration of Mg2+ ion in seawater is 1.35 x 10³ mg/L, what OH concentration is required…

A:

Q: Can we expect a precipitate of lead (II) iodide (PbI2(s) ) to form when 20.00 mL of a 0.0050 mol/L…

A: For any electrolyte's precipitation, if ionic product carries lower value than solubility product…

Q: Another way to disinfect swimming pools is to use low concentrations of silver ions by using…

A: Solubility product is the product of concentration of ions that are in equilibrium condition with…

Q: What is the nickel ion concentration in a solution prepared by mixing 409 mL of 0.389 M nickel…

A:

Q: Lead(II) sulfate (PbSO4) is a key component in lead-acid car batteries. Its solubility in water at…

A:

Q: You mix 275.0 mL of 1.20 M Pb(NO3)2 with 300.0 mL of 1.85 M KI. Calculate the mass of precipitate.

A: Given data : Concentration of Pb(NO3)2 = 1.20 M Volume of Pb(NO3)2 = 275 mL Concentration of KI =…

Q: A solution containing KCl (74.551 g/mol) is analyzed by the Mohr method. A 0.5863 g sample is…

A: Solutions                                 Given that A solution containing KCl (74.551 g/mol) is…

Q: A 0.8729 g sample containing an unknown amount of Pb was dissolved in concentrated HNO3 and diluted…

A: Given that,  Amount of unknown sample of Pb, w = 0.8729g Amount of product Pb(IO3)2 ,  = 0.1278g…

Q: solution (100 mL) containing 325 ppm K+ is analyzed by precipitating it as the tetraphenyl borate,…

A:

Q: A solution was prepared by dissolving 5.76 g of KCI .MgCl2. 6H2O (277.761 g/mol) in sufficient water…

A: GivenAmount of KCl.MgCl2.6H2O = 5.76 gMolar Mass of KCl.MgCl2.6H2O = 277.761 g/molVolume of solution…

Q: What is the solubility oh PbF2 in water? The Ksp for PbF2 is 2.7 x 10^-8

A:

Q: 6. How many milliliters of 0.175 M Hg(NO3)2 is needed to completely precipitate 2.50 g KI? (Molar…

A: According to the given reaction 1 mol of Hg(NO3)2 is required to precipitate 2 mol of KI. The molar…

Q: mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20 mL…

A: We add excess  potassium iodide to  hypochlorite sample. oxidation reduction reaction takes place…

Q: What is the molar concentration of K+ ion in a solution that contains 55.6 ppm of K3Fe(CN)6 (329.3…

A:

Q: The Ksp of Ca3 (PO4 ) 2 is 1.3 × 10−26 . Estimate the solubility of this salt in units of g. L −1 .…

A:

Q: 2. * A sodium hydroxide solution is standardized by titrating 0.8592 g of ordinary standard…

A: Given that:                              Weight of Potassium Hydrogen pthalate (KHP) = 0.8592gMolar…

Q: A 10.00 mL portion of an HCl solution required 11.01 mL of 0.09883 M NaOH to reach an end point with…

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.