Y54) A 1.000-g sample of a mixture which contains only NaCl and KCl gare a precipitate of AgCl which weighed 2.000 g. What are the percentages of Na and K in the mixture? Ans. 44.77% K; 5.75% Na.

Q: Consider the reaction 3CaCl,(aq) + 2N23PO4(aq) --> Caz(PO4)2(s) + 6 NaCI(aq) (molar mass of calcium…

A: This question is based on stoichiometry. In this problem we have to find mass of calcium phosphate…

Q: A chemist measured the concentration of a solution three times and obtained the following results…

A: Accuracy and precision are two important terms as far as measurement is concerned. Accuracy means…

Q: Calcium bydroxide may be used to neutralize (completely react with) aqueous hydrochlcric acid.…

A: The balanced reaction will look like, 2HCl + Ca(OH)2 → CaCl2 + 2H2O It is given that,amount of solid…

Q: A 0.6L of a solution is prepared by dissolving 110g of NaF in it. The molecular weight of NaF is…

A: Given, Volume of NaF solution = 0.6 L Mass of NaF = 110 g Molecular weight of NaF = 41.9 g/mol

Q: Barium sulfate, BaSO4(s), is only slightly soluble in water (Ksp = 9.1 x 10–11). What is the…

A: 2.8 g of SO4 2- ions are soluble in 1 L of solution. Molarity of sulfate ions is as:

Q: When 12.00 mL of 0.183 M BaCl2 were mixed with 10.00 mL of 0.352 M of Na2C2O4, a student collected…

A:

Q: Concentrated sulfuric acid (18.3 M) has a density of 1.84 g/mL.(a) How many moles of H2SO4 are in…

A: Molarity of a solution is defined as the number of moles of solute present in one liter solution,…

Q: A Stock Solution has a Concentration of 5.5O Mol/h. What Volume of this Stock solution Is required…

A:

Q: What is the [H3O+] of a 0.1288 M CICH₂COONa? Answers are expressed in molarity. Ką for CICH₂COOH is…

A:

Q: The original solution contains 50.0 mL of 0.20 M H₂SO4. How many moles of H+ are in the solution?…

A:

Q: What mass of solid La(IO,); (663.6 g/mol) is formed when 60.0 ml of 0.356M La* is mixed with 80.0 ml…

A: For balancing a chemical equation, total number of an atom should be equal on both side of arrow. If…

Q: Q3/ calculate the mass of calcium chloride of the dissolved in 30 ml of D.W from solution with…

A:

Q: What is the mass (g) of the solute for the following: (a) 15.6 ml of 0.155m NaOH

A:

Q: A 0.430-g sample of CaCO3 is dissolved in 12 M HCl and the resulting solution is diluted to 250.0 mL…

A:

Q: A sample of 7.75 g of Mg1OH22 is added to 25.0 mL of0.200 M HNO3. (a) Write the chemical equation…

A:

Q: What concentration of 29.03 mL of H2SO4 can be prepared from 13.53 mL of 0.45 M H2SO4?

A:

Q: What will be the Molar concentration of the 369.86  HCl solution prepared from 3 mL of concentrated…

A: First we will calculate molar concentration of concentrated HCl , then using if find concentration…

Q: Q2/ The aluminum content of an alloy is determined gravimetrically by precipi- tating it with…

A:

Q: What is the [H3O+] of a 0.1982 M CH3(CH2)2CH2NH3Br? Answers are expressed in molarity. Kb for…

A: Given :  CH3(CH2)2CH2NH3Br is salt of strong acid and weak base.  [CH3(CH2)2CH2NH3Br] = 0.1982 M  Kb…

Q: 3. (a) If 10.0 mL of H,SO4 (sp. Gr. 1.50, containing 48.7% of combined SO3 by weight 400 mL, what is…

A: Given Conditions → Volume of the Sulphuric Acid solution =10 ml. Specific Gravity = 1.5 :: Specific…

Q: 16. A 1.2 gram of procaine hydrochloride drug (molar mass = 373 g/mole). If the volume of added…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: Calculate the molarity of a solution that contains 324 grams of KNO3 (molar mass of KNO3 =86 g/mole)…

A: Molarity ( M ) : it is defined as the number of moles of solute present in dissolved state in one…

Q: 1. What mass of Agl can be produced from 0.240-g sample that assays 30.6% Mgl2?

A: As per the guideline, since you have asked multiple questions, we have solved the first question for…

Q: 0.21 M CH3NH3I (Kp (CH3NH2) = 4.4 × 10-4)

A: Given data: Dissociation constant of base (Kb) = 4.4 x 10-4  Concentration of CH3NH3I = 0.21 M…

Q: A sample of 7.75 g of Mg(OH)2 is added to 25.0 mL of0.200 M HNO3. (a) Write the chemical equation…

A: (a) The chemical equation for the reaction that occurs when a sample of 7.75 g of Mg(OH)2 is added…

Q: One-half liter of 2.7M HI is mixed with 200 ml of 1.61 M of H2SO4.   What is the concentration of H+…

A: Given : volume of HI solution used = one-half litre = 0.5 L   Concentration of HI = 2.7 M…

Q: How many grams of Ni(OH)2 are produced from the reaction of 45.0 mL of a 1.60 M NaOH solution and…

A: Given, 45.0mL of 1.60M NaOH

Q: A generic salt, AB3, has a molar mass of 253 g/mol and a solubility of 8.70 g/L at 25 °C. What is…

A:

Q: 6. a chlorous acid solution is added to solid sodium carbonate 7. solutions of strontium hydroxide…

A: Net ionic equation :  When spectator ions are removed from ionic equation,  the ions left in last of…

Q: KEGIONV WORK ON THIS! 45.00 mL of 1.25 M HCI is diluted to a volume of 150 mL. What is the…

A:

Q: What is the [H3O+] of a 0.1011 M H2NCH2COONa? Answers are expressed in molarity. Ka for H2NCH2COOH…

A: Concentration of H2NCH2COONa=0.1011M  Ka of H2NCH2COOH=4.50×10-3

Q: f 14.0 g of AgNo3 is available, what volume of 0.27m AgNO can be prepared ??

A: Molarity of a solution can be calculated by using the formula :     Molarity =Number of moles of…

Q: A sample containing a mixture of CuCl2(s) and KCI(s) with a mole fraction of 13.8% KCI was dissolved…

A:

Q: A 20 mL volume of 0.015 M KIO3 containing an excess of KI, is added to a 0.312 g sample of a Real…

A:

Q: 0.921mol  Ba(OH)2 and 0.5mol NH4Cl are mixed together then added 250ml water and this solution is…

A:

Q: tration of a solution when 9.5 g of K₂CrO4 is dissolved in 1700 mL of water? SL SME ? M

A: Given,  Mass = 9.5 g Molar mass = 194 g/mol Moles = mass/ molar mass   = 9.5/194 = 0.0490 mol Volume…

Q: 1. Calculate the number of moles of cyclohexanol (d = 0.96g/ml) if 20 mL was used in the reaction?

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: gascous ammonia, NH3(A) at Water and reacts. A 3.831 Volume of STP is bubbled through lo8.omL…

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

Q: Suppose a 250. mL flask is filled with 0.50 mol of H, and 0.90 mol of Hl. This reaction becomes…

A: Given: Volume of flask = 250 mL = 0.250 L                                     (Since 1 L = 1000 mL)…

Q: What is the molarity of 75% solution of HCl that has a density of 1.25 g/mL? (The MM of HCI is…

A: Molarity of a solution is defined as moles of solute present per liter of solution. Mathematically…

Q: phthalate was dissolved in 50 mL of deionized water and titrated to a phenolphthalein end- point…

A: The question involves titration of KHP with calcium hydroxide. we need to calculate concentration of…

Q: ml of sodium carbonate solution 250 contains 2.65g of Na2CO3. If 10 ml of the solution is diluted…

A:

Q: Q5A.How many grams of Anilin C6H5NH2 should be dissolved in water to prepare a solution of 1 liter…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: A 46.77-mL solution containing NaBr was treated with excess AgNO3 to precipitate 1.742 g of AgBr (FM…

A: The balanced chemical reaction is given by     NaBr(aq)     +  AgNO3(aq)    →   NaNO3(aq)      +…

Q: A 1.000-g sample of a sweetening agent containing soluble Saccharin (MM=205.17g/mol) was analyzed…

A: Mass of sample = 1.000 g Soluble Saccharin (MM=205.17g/mol) Volume of AgNO3 = 10.0 ml Molarity of…

Q: 2. How many grams of Cu(C2H302)2 H2O (FW 199.65 g/mol) are needed to prepare 500.0 mL of a 0.250 M…

A: For a given chemical species, the number of moles refers to the ratio of mass to the molar mass. The…

Q: 1.. Use a stock solution of 0.0007015 M NaCl. (All glassware used is volumetric →∞o sig. figs) a.)…

A: Concentration of stock (Cs) = 0.0007015 M On dilution to different levels, the concentrations of…

Q: (a) What volume of 2.50 M lead(II) nitrate solution contains0.0500 mol of Pb2+? (b) How many…

A: Molarity of the solution is equal to the number of moles of solute present in one liter of the…

Q: How many moles of NiCl2NiCl2 can be formed in the reaction of 7.00 molmol of NiNi and 14.0 molmol of…

A: Chemical Equation will be given by- 2HCl + Ni ----> NiCl2 + H2 According to reaction, We can…