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If 9.5 grams of copper sulfate pentahydrate and 2 grams of iron are given, calculate which reactant is the limiting reactant. In other words, the formula is CuSO4+ 5H20. Given the limiting reactant above, how much copper, in grams, should be produced by this reaction.
the tip of a vinegar buret but disappears during the course of the titration, how would this affect your calculation of the concentration of acetic acid
A rubber balloon was inflated with helium gas and floated in the air. The next day, the balloon was somewhat smaller and no longer floated.
Find the volume of oxygen - What volume of oxygen is needed to completely combust 2.07 L of methane gas
A 2.914-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 Celsius in a crucible until a constant mass is reached.
Consider the following reaction at equilibrium. What effect will adding more H2S have on the system? 2H2S + 3O2 ---> 2H2O +2SO2
Vanadium(V) Oxide reacts with calcium according to the chemical equation below. When 10.0 moles of V2O5 are mixed with 10.0 moles of Ca, which is the limiting reagent?
A 10.0 ml sample of aqueous HCl requires 18.66 ml of 0.206M NaOH to reach the endpoint . What is the molar concentration of HCl ? The chemical equation of the reaction is
The same reactant decomposes with a half-life of 211 s when its initial concentration is 0.160 M. Determine the reaction order
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women. a)How many groups could be formed? b) which sex is in excess? By how much? (show calculation..
The linear form (y=mx+b) of the Arrhenius equation is given below : ln K = -Ea/RT + Ln A 1) In order to find the activation energy (Ea) you will need to make a linear graph
Calculate the volume change associated with the adiabatic expansion b) Calculate the heat flow, work and entropy
The pH in a lake the size of 4.0 km X 7.0 km and an average depth of 100 m is found to be 4.5. Calculate the mass of calcium carbonate that must be added to the lake water in order to raise its pH to 6.0.
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