What is the mass of Co(NO3)2 in 367 mLs of solution that contains only 0.551 moles of Co(NO3)2?
As per your questions given,
Moles of Co(NO3)2 = 0.551 moles
Molar mass of the compound = 59 + 2×(14 + 48) = 183 g/mol
Mass = molar mass× moles
So mass of compound = 0.551 × 183 = 100.83 gram
What is the mass of Co(NO3)2 in 367 mLs of solution that contains only 0.551 moles...
I need help plotting the mass of precipitate versus moles of
Pb(NO3)2 .
Reaction Equation: Pb(NO3)2 + 2KBr →
PbBr2 + 2KNO3
Volume (mL) Solution Mixture 0.50 M Pb(NO3)2 0.50 M KBT 2.00 18.00 4.00 16.00 6.00 14.00 8.00 12.00 10.00 10.00 12.00 8.00 14.00 6.00 16.00 4.00 18.00 2.00 Data Collection | Experimental Data Assignment Number Volume Pb(NO3)2 16m Moles Pb(NO3)2 Volume KBr 114 mL Moles KBT Mass of watchglass and filer paper (g) 28.7455 | 1st heating: Mass...
Question 2 0.4 pts A sample contains 206 mL of 1.15M Pb(NO3)2. The sample contains moles Pb2+ and moles NO3 (Express your answer with 4 decimal figures or 4 prd's)
What is the concentration of nitrate ions in 2.00L of a solution that contains 0.250 moles of Fe(NO3)3 ? The answer is ....0.375M, but how? A 150. mL salt solution is prepared by diluting a 25.0 mL sample of a more concentrated solution. The concentration of the diluted salt solution is 0.550 M. What was the concentration of the undiluted salt solution? How is the answer.... b) 3.30 M and not .0917??
Will Co(OH)2 precipitate from solution if the ph of a .020 M solution of Co(NO3)2 is adjusted to 8.5? If yes what is the ph needed to stop precipitation? If no what is the ph needed to start precipitation? Ksp Co(OH)2= 5.9* 10^-15
Please answer all, thank you! Part A What volume of a 0.32 M Mg(NO3)2 solution contains 92 g of Mg(NO3)2? Express your answer using two significant figures and L. Part B A 4.5 −L sample of a 5.7 M NaCl solution is diluted to 60 L . What is the molarity of the diluted solution? Express your answer using two significant figures. Part C How much of a 14.0 M HNO3 solution should you use to make 840.0 mL of...
Will Co(OH)2 precipitate from solution if the pH of a 0.020 M solution of Co(NO3)2 is adjusted to 8.5? a Co(OH)2 precipitates b no Co(OH)2 precipitates
How many moles of Zn(NO3)2 are in 75.7 mL of 2.00 M solution?
A) A chemist prepares a solution by adding 304 mg of Co(NO3)2 (MW = 182.94 g/mol) to a volumetric flask, and then adding water until the total volume of the contents of the flask reaches the calibration line that indicates 100 mL. Determine the molarity of the prepared solution. B) Determine the mass of chloride (MW = 35.45 g/mol) in grams present in 100mL of a 0.289 M solution of aqueous FeCl3 (iron(III) chloride). C) A beaker contains 250 mL...
When a solution of Lead Nitrate, Pb(NO3)2 , is mixed with a solution of sodium iodide, NaI, a precipitate of lead iodide, PbI2 , is formed. a) Write the chemical equation for this reaction showing the state of all reactants and products. b) If 1 mol of Pb(NO3)2 reacts with 2 mols of NaI, what is the amount of PbI2 that will be formed? c) If 1 mol of Pb(NO3)2 reacts with 2 mols of NaI, which compound would be...
Plot 1 Mass of precipitate (8) 0.002 0.008 0.01 0.004 0.006 Moles of Pb(NO3)2 Plot 2 Mass of precipitate (g) 0.002 0.008 0.01 0.004 0.006 Moles of KBr Given the plots provided, estimate the following: The number of moles of Pb(NO3)2 that produce a balanced stoichiometry for the reaction. 0.003 0.004 O 0.006 O 0.008