B. Weight of Na2SO4 Sample 0.3512 g C. Total Vol. of Precipitant (BaCl2) used WITH 1М ВаCI2 PLEASE FIND THE calculated volume of BaCl2 precipitant will be calculated using this formula: NVBaCl2 = (weight of sample) (1000)(EW) V(ml)BaCl2 = (weight sample) %3D (1000)N(EW)
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- B. Weight of Na2SO4 Sample 0.3512 g C. Total Vol. of Precipitant (BaCl2) used WITH 1M BaCl2 PLEASE FIND THE calculated volume of BaCl2 precipitant will be calculated using this formula: NVBaCl2 = (weight of sample)(1000)(EW) V(ml)BaCl2 = (weight sample)(1000)N(EW).5:23 O13%DE elearning.yu.edu.jo/m O A student was given 2 beakers labeled with numbers 1 and 2, each beaker contains a clear solution. Additionally, he was given two reagent bottles labeled with A and B. Now, he added reagent A to both beakers and he noticed the formation of a precipitate in beaker 2 but not in beaker 1. However, the addition of reagent B to both beakers resulted in the formation of a precipitate in beaker 1 but not in beaker 2. Based on the information, which of the following is correct? a. compound A is the limiting reactant in beaker 1. b. compound B is the limiting reactant in beaker 2. c. compound A is the limiting reactant in beaker 2. d. compound B will be the excess reactant in beaker 1. Question 2O e) % KBr = % 66.2 , % KCI = % 33.8 %3D The solubility product (Ksp) for 4 points Pb(OH)2 (s) is 2.5 x 10-16. What would be the quantity of solubility by g/L of Pb(OH)2 which has Mwt =241.2 g/mole)? O 9.947 x 10-4 O 5.975 x 10-4 O 7.596 x 10-5 O 9.575 x 10-4 O 9.723 x 10-4 Calculate [H+], PH and POH 4 points
- Part A) A 10.0 mL sample of 0.250 mol/L NiF2(aq) is mixed with 20.0 mL of 0.0900 mol/L NaOH(aq) and then diluted to a final volume of 100. mL.Calculate the concentration of Ni2+ ions in the 100 mL mixture before the reaction starts. Express your answer to three significant figures.ksp: 5.48e-16will W S > 3. What is the final molar concentration if 285.0 mL of water is added to 450.0 mL of a 0.925 mol/L aluminum sulfate (Al2(SO4)3] ? JUN 10 TO 0 #3 Q E D 4 C I R F % 5 V T MacBook Pro & ^ 6 G Y 7 U H BN * 00 8 4 1 ( 9 JK M 0 V LSolid cobalt (II) acetate is slowly added to 125 mL of 0.0945 M ammonium chromate solution. What is the concentration of cobalt required to just initiate precipitation? The Ksp of CoCrO4 is 7.1 * 10 -4. Report answer in scientific notation to two sig figs.
- To calculate the concentration of H2SO4 gravimetric analysis is done by the reaction given below. When the 5 ml of H2SO4 were mixed with BaCl2 (assume excess amount) the precipitation of BaSO4 occurs and the following data were obtained. What is the concentration of H2SO4? (BaSO4: 233.38 g/mol , H2SO4: 98.079 g/mol) H2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2HCI(aq) Mass of filter paper: 1.025 g Mass of filter paper + BaSO4: 1.200 gAgency TEXAS UNITED REALTY Real Estate 75 g u cup increases by 2.44 70 V the heat change per mole of Cich dissolved in water Assame that all the heat is absorbed ed E. D 1 15) When aqueous solutions of Pb(NO3)2 and NaCl are mixed, PbCl2 precipitates. The balanced net ionic equation is: O to slom to slom I asdW (SC flot sdi of gaibros (2)OsH bas (2)5¹1 mot Pb2+ (aq) + 2C1- (aq) → PbCl2 (s) prisupe Pb2+ (aq) + 2NO3- (aq) → Pb(NO3)2 (s) H Pb2+ (aq) + 2NO3- (aq) -> Pb(NO3)2 (aq) Pb(NO3)2 (aq) + 2NaCl (aq) → PbCl2 (aq) + 2NaNO3 (s) laubonTitration of Acetic Acid in vinegar Purpose: To find the molarity (M) of acetic acid in vinegar by titration with a standardized 0.50M sodium hydroxide Solution. (acetic acid = HC₂ H3 0₂ = CH3 COOH) Reaction: Data: -0.50M NAOH .Vinegar contains acetic acid 1 NaOH(aq) + 1 HC₂ H₂ Oz (ag) 0.50 mel ?mol IL IL Volume of vinegar Volume of NaOH initial -> Volume of NaoH final Volume of NaOH used Molarity of vinegar Trial I 20.00 mL 0.60 mL 35.45 mL 34, 85 m² 1 Na C₂ Hz O₂ (g) + 1 HOH (e) (H₂O) Trial 2 20.00 mL 0.85 mL 34.30 ML Trial 3 20.00 mL 0.45mL 33.80mL 1. What is the determined concentration of the NaOH solution? 2. The NaOH solution has been standardized. What is its molarity? What is the molarity of the acetic acid solution as determined from the titration?
- M req M #3 80 E D Solid barium chloride is slowly added to 75.0 mL of a 0.205 M sodium carbonate solution until the concentration of barium ion is 0.0440 M. The percent of carbonate ion remaining in solution is %. Submit Answer C $ 4 000 888 R F % 5 V [References Use the References to access important values if needed for this question. Retry Entire Group T Cengage Learning | Cengage Technical Support G 6 6 more group attempts remaining MacBook Pro B Y H & 7 U N 11 * +00 8 J 1 M ( - 9 K O ) 0 I 2 L P command Previous Email Instructor { + 11 [ Next Save and Exit 27 option ? 1 ] delewe dissdve 350ml volumetric Flask.LWe call this sdlution (S) oa of hydrated cupric sulfate (cusoy.5H,0 in given.molar mass launol ). Cu:64 S-32 H+ 1 1. Write the equation of dirsociation of hydrated cupric sulfate in water. 12. Calculate the molar mass of hydrated cupric sulfate. 1.3. Determine the molar concentration of (S). 14. Deduce it's mass concentiation. 1.5.1ist te materials used. 16. Write the procedure of preparting (5).3 Bal, (aq)+ 2 Nag POq Caq) 7 BalPO42 + l6 Nal laq • Consider the reaction of 30.0mL of 0.270M Balz with 20.0 mL of 0.3ISM Naz PO4. Lwhat quantity in meles of Balz are preset in the solution? are produced /What quantitg in moles of precipitate E ali Bal were consumed based on the balanced chomical equation? 6) What auantity in males of Na3 Pla aro present in soluction? d) What quantity in moles of precipitate are paduced if all the Naz PO, were cansumed based on the balanced chemi.cal equation? e) which reactant is limisting f What mass (in g) of precipitate is firemed when the limiting reactant is considered?