How many moles of A2B can be made if 20.0 mL 0.20 M A are combined...
How many moles. of Mg(OH)_2 can be precipitated when 15 mL of 0.20 M MgCl_2 solution is mixed with 25 mL. Of 0.18 M KOH? 0.0015 mol 0.0022 mol 0.0030 mol 0.0045 mol A student wants to prepare 250 mL of 0.10 M NaCI solution Which procedure is most appropriate ? (The molar mass of NaCI is 58.4 g mol^-1) Add 5 84 g of NaCI to 250. mL of H_2O Add 1 46 g of NaCI to 250 mL...
Part XI 71. 2 Mn04. (aq) + 5C2042-(aq) + 16H+(aq) → 2 Mn2+ (aq) + 10CO2 (g) + 8H20(1) Permanganate and oxalate ions react in an acidified solution according to the balanced equation above. How many moles Mn2(g) are produced when 20. mL of acidified 0.20 M KMnO, solution are added to 50. mL of 0.10 M Na,C,o.? a) 0.0020 mol b) 0.0040 mol c) 0.0090 mol d) 0.010 mol
A student mixes 41.0 mL of 2.84 M Pb(NO3)2(aq) with 20.0 mL of 0.00235 M Nal(aq). How many moles of Pbla(s) precipitate from the resulting solution? Number K,,[Pb12()] – 9810 mol What are the values of [Pb2+), [1]. [NO3-), and [Na*) after the solution has reached equilibrium at 25 °C? Number Number [Pb?*] = Number Number [no; ]- 0 M [nat)-
How many mL of 0.300 M AlCl3 react with exactly 20.0 mL of 0.250 M Na2SO4(aq) given the reaction: 2 AlCl3 + 3 Na2SO4 -> Al2(SO4)3 + 6 NaCl A. 11.1 mL B. None of these choices is correct C. 1.00 mL D. 16.7 mL E. 25.0 mL
help! 1) How many moles of precipitate will be formed when 80.0 mL of 2.00 M NaI is reacted with 100.0 mL of 0.900 M Pb(NO₃)₂ in the following chemical reaction? 2 NaI (aq) + Pb(NO₃)₂ (aq) → PbI₂ (s) + 2 NaNO₃ (aq)
Grams and moles help please, have a test tomorrow on these questions. 1) How many grams of precipitate will be formed when 45.5 mL of 0.300 M Na₃PO₄ reacts with 50.0 mL of 0.200 M Cr(NO₃)₃ in the following chemical reaction? Na₃PO₄ (aq) + Cr(NO₃)₃ (aq) → CrPO₄ (s) + 3 NaNO₃ (aq) 2) How many moles of precipitate are formed when 20.0 mL of 0.250 M Ca(NO₃)₂ is mixed with excess Li₃PO₄ in the following chemical reaction? 3 Ca(NO₃)₂...
student mixes 39.0 mL of 3.32M Pb(NO_3)_2(aq) with 20.0 mL of 0.00223 M Na_2SO_4(aq). How many moles of PbSO_4(s) precipitate from the resulting solution? K_sp[PbSO_4(s)] = 2.5 times 10^-8 M^2 What are the values of [Pb^+2], [SO_4^2-], [NO_3^-], and [Na^+] after the solution has reached equilibrium at 25degreeC? [Pb^+2] = [SO_4^2-]= [NO_3^-]= [Na^+]=
A. How many mL of a 0.118 M solution of KMnO4 are needed to titrate 20.0 mL of 0.214 M solution of sodium oxalate, Na2C2O4? The net ionic equation is 2MnO4-(aq) + 5C2O42-(aq) +16H+(aq) → 2Mn2+(aq) + 10CO2(g) + 8H2O(l) B. In which of the following compounds can an element highlighted in red act as an oxidizing agent? CaH2, CH4, NH3, ClO2, H2O
show all work Consider that 20.0 mL of 0.10 M HA (an arbitrary weak acid, Ka= 2.5 × 10−6) is titrated with 0.10 M NaOH solution. The ionization of HA in water occurs as the following. HA (aq) + H2O(l) ⇌ A (aq) + H3O (aq) The neutralization reaction between HA and NaOH can be expresses as the following. HA (aq) + NaOH (aq) NaA (aq) + H2O (l) Answer the following questions. A) What will be the initial...
How many moles 25) How many moles of CuO can be produced from 2.25 mol of Cup in the following reaction? 2 Cu2O(s) + O2(g) - 4 CuO(s) A) 2.25 mol B) 4.50 mol C) 1.12 mol D) 9.00 mol 25)