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When limestone is heated it releases CO2 and CaCO. How many grams of CaCO3, whose purity is 95%, are required to yield 250. g of CaCO?
What are the pH, pOH, hydroxide ion concentration , and hydronium ion concentration of a 0.014M strontium hydroxide solution
Sodium hydroxide is slowly added to a 225 mL of a solution that is 3.0*10^-2 M Ba2+ and 1.5*10-3 M Cr3+. Which will precipitate first
Balance two of the following redox equations. Identify the oxidation half reaction and the reduction half reaction. Fe^2+ + MnO4_. Fe3+ + Mn2+
Calculate the equilibrium constant for the reaction
Calculate the pH of each of the following solutions.
At 200°C, in the reaction below, the molar concentration of A was 7.81 M after 2.33 s and 1.45 M after 7.93 s. What is the average rate of reaction in M/s? 2A => Q + Z
if 18.6 of 0.800 solution are needed to neutralize 5.00 of a household ammonia solution what is the molar concentration
How many moles of water will be formed from 0.2 mole of CH4 reacting with enough O2. In this reaction CH4+2O2--->CO2+2H2O
when a substance is being reduced, what type of current is produced?
You are fortunate to land a research position with Dr. Xavier Wray. Your first day in the lab the good doctor asks you to make a liter of 0.1 M citrate buffer pH 3.5 that you will need for the big extract procedure he will show you how to do after..
For the unbalanced equation Cl2 ++ KI = I2 + KCl - how many moles of the second reactant would be require to react exactly with the 0.275 mole of the first reactant
The Milikan experiment is important because it determined the of an . Using Thomson's and Milikan's the of an was determined. Rutherford's experiment is important because it clearly demonstrated that the is mostly
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