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A solution may contain the following ions Ag+, Cu2+, Cd2+, Mn2+, Ni2+ and Na+. A white precipitate formed when 0.10 M NaCl was added and after this was removed the solution was treated with H2S gas under acidic conditions and no precipitate formed. When the solution was made basic and again treated with H2S gas a dark colored precipitate formed. If no further tests were made then what conclusions can you draw?
Answer choices:possible ions present Ag+, Mn2+, Ni2+possible ions present Ag+, Cu2+, Cd2+possible ions present Ag+, Mn2+, Ni2+, Na+possible ions present Ag+, Cu2+, Cd2+, Na+
How many mL of 0.425 M NaOH are needed to react completely with 25.0 mL of 0.250 M Fe Cl3 solution. FeCl3 aq + 3NaOH arrow to Fe(OH)3 aq +3NaCl aq
a) write a balanced equation for the reation. b) When 46.0 g of KClO3 is heated, 12.1 g of O2 is formed. How many grams of KCl is also formed? c) What is the percent yield of O2 for the reaction
.20g of methyl alcohol, CH3OH, are dissolved in 16.8g of water, H2O. What is the mole fraction of the solute.
If you know the answer please give units :) Part A: The reactant concentration in a zero-order reaction was 5.00×10^?2M after 140s and 3.00×10^?2M after 300s. What is the rate constant for this reaction? -> For this I got that 1.25x10^-4M/s, whic..
Concentrated sulfuric acid is used as a catalyst for the esterification of acetic acid in the preparation of isopentyl acetate. Why is sulfuric acid needed if another acid, acetic acid, is already present
Which possesses more energy a photon with a wavelength of 528 nm or a photon with a frequency
Calculate the ratio of solubility of Mg(OH)2 dissolved in pure H2O to Mg(OH)2 dissolved in a 0.180 M NaOH solution? Express your answer numerically to three significant figures.
Is the reaction exothermic or endothermic. Does the reaction lead to an increase or decrease in the disorder of the system
Displays the volume and pH at which equivalence was reached and plots this point on the graph and validates the code by plotting the midpoint using both methods and displaying the volume and pH for both methods in the Command Window.
Explain your answer. Could you still identify what those amino acids were? Explain your answer. What can you not do?
Calculate the Gibbs Energy of reaction at 298 K for the following using 2 methods. First use enthalpies and entropies of formation and DrGo = DrH o - TDrS o to calculate DrG o.
draw,clearly showing the bonding between atoms, the simplest alkane molecule consisting of hydrogen and carbon, describe the molecule shape and bond angles.
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