Suppose 5.00 g of NaCl (FW = 58.44) and 5.00 g of Mg(NO3)2 (FW= 148.3) are...
A soln containing 439.4 g of Mg(NO3)2 (148.3 g/mol) per liter has a density of 1.114 g/mL. What is the molarity of the solution?
help with thes 12. In the reaction, K2SO4(99) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which ions are the spectator ions? a. Ba2+ and SO42- b. Ba2+ and K+ c. Ba2+ and NO3 d. K+ and SO42- e. K+ and NO3 13 Which is the net ionic equation for the reaction which takes place when HCl(ag) is added to KOH(aq)? a. HCl(aq) + KOH(99) KCl(aq) + H2O(1) b. H(aq) + OH(aq) + H2O(1) c. HCl(aq) + OH(aq) + Cl(aq) +...
Suppose the theoretical yield in a reaction is 11.8 g and the percent yield is 58.2 %. What is the 36. actual yield of product obtained? A) 687 g B) 6.87 g C) 20.3 g D) 0.203 g Consider the oxidation of sodium metal to sodium oxide described by the balanced equation: 37. 4 Na+ O2 2 Na:O. What is the theoretical vield of Na:O in grams from 9.0 mol of O? 210 g of Na;O 18 g of Na...
Part 1 (1 point) A chemist makes up a solution by dissolving 25.0 g of Mg(NO3)2 in enough water to produce a final solution volume of 141 mL. To calculate the molarity of the solution, what additional information is needed? And See Periodic Table ’See Hint Choose one: the molar mass of Mg(NO3)2 the volume of water used the mass of the water added the density of the Mg(NO3)2 Part 2 (1 point) See Hint Calculate the number of moles...
Select the Redox Reactions: A) Mg + 2H+--> Mg2+ +H2(g) B) K2CO3(aq) + Sr(NO3)2(aq)--> SrCO3(s) + 2KNO3(aq) C) 2OH- + 2ClO-2 --> ClO2- + ClO3- + H2O D) H+ + OH- --> H2O E) KSCN (aq) + Fe(NO3)3(aq) --> FeSCN2+(aq) + KNO3 (aq) + 2NO3- (aq) F) AgCl(s) +2NH3(aq) --> Ag(NH3)2+ (aq) +Cl- (aq)
Suppose we have a solution of lead nitrate, Pb(NO3)2(aq). A solution of NaCl(aq) is added slowly until no further precipitation occurs. The precipitate is collected by filtration, dried, and weighed. A total of 15.93 g of PbCl2(s) is obtained from 200.0 mL of the original solution Calculate the molarity of the Pb(NO3)2(aq) solution. Number
NH4Cl, Li2CO3, Ca(NO3)2, KCl, Mg(NO3)2, Na2CO3, CaF2, Zn(NO3)2, CuSO4, NaCl, KNO3, LiF, NH4Br, CaCO3, NaF, Pb(NO3)2, NaOAc3, LiCl, BeCl2 Using the above list of possibilities, answer the last row for #2 and #3 Part B: Reactions of Salts with Water Action Unknowns Unknown number # 1 # 2 #3 Molar mass of unknown solid shown on label Miss Igl of unknown necessary to make it 0.10 M solution Color of unknown solid 53.499/mol 105.99 9/mol 159.60 s/mol O.Il grams 0.21...
6) All of the following compounds are soluble in water EXCEPT: B) NaCl. C) NH40 A) Paz. D) FeCl3 Eco, 7) If you had an aqueous mixture that contained As, K, and Pb * cations, how many diff solids could precipitate if a chloride solution was added? y different A) 1 B) 2 C) 3 D) 4 E) no solids will precipitate 8) Considering the following precipitation reaction: Pb(NO3)2(aq) + 2Kl(aq) -- Pbly(s) +2KNO3(aq) Which ion would NOT be present...
Question 14 of 15 Determine the molar mass of Mg(NO3)2. g/mol 1 4 2 5 3 6 7 8 9
QUESTION 1 43.2 mL of aqueous 0.255 M Pb(NO3)2 is mixed with 36.1 mL of 0.415 M NaCl. The equation for the precipitate reaction is: Pb(NO3)2 (aq) + 2 NaCl (aq) --> PbCl2 (s) + 2 NaNO3 (aq) How many moles of PbCl2 are formed? (with correct sig figs) QUESTION 2 What volume (in mL!!!) of 1.28 M HCl is required to react with 3.33 g of zinc (65.41 g/mol) according to the following reaction? Zn(s) + 2 HCl (aq)...