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a) Calculates the amount of lime (CaO) that can be prepared by heating 200g of limestone with a purity of 95% CaCO3 by mass.
CaCO3 => CaO + CO2
b)92.0g Na Some are cast in 76.0g of water, and allowed the reaction to occur to completion, according to the following equation: 2Na + 2H2O => 2NaOH + H2
* Determine which is the limiting reagent and how many grams of excess reagent remain unreacted.
* Calculate the theoretical yield of the reaction
* If the reaction has an 80% yield, how many grams of NaOH actually get? (Current performance)
Cyclopropane has significantly less angle strain than cyclopropane, yet is only slightly lower in energy. How can this be true? How does this information relate to the fact that cyclobutane is not a planar molecule
What is the pH of the solution created by combining 1.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)
An enzyme preparation from isolated beef liver mitochondria has the capacity to carry out all of the reactions of the tricarboxylic acid cycle when supplied with the essential precursors of acetylCoA, NAD+, FAD, GDP, and Pi2-.
A foul-smelling gas produced by the reaction of with was collected, and a 1.00 sample was found to have a mass of 1.52 at STP. What would be the formula.
A piece of iron limestone weighing 0.1965g was allowed to react with an excess of hydrochloric acid. The calcium in it was precipitated as calcium ethanedioate.
What is the pH of the solution at the equivalence point for the titration of 100 mL of a .786 M HCO2H solution with a .786 M Solution of sodium Hydroxide? Formic acid has a Ka=1.80*10^-4
State whether each of the following is a physical or a chemical property of copper. has good corrosion resistance high melting point doesn't react with water reacts with oxygen
A mixture of O2, CO2, and N2 has a total pressure of 762. torr. In this mixture the partial pressure of O2 is 112. torr and the partial pressure of CO2 is 185. torr. What is the partial pressure of the N2 (in torr)?
What is the molarity of the solution if 310 of the solution reacts with magnesium to produce 7.40 of gas measured at STP?
Stretched rubber band Touch the relaxed rubber band briefly to your upper lip. Quickly stretch your rubber band and immediately touch the stretched rubber band to your upper lip again
Suppose you have a mixture of 2 substances. You know one of the substances is either 2-chlorobenzoic acid or diphenyl acetic acid. The second substance is either p-dibromobenzene or acenaphthylene.
The diatomic molecule OH exists in the gas phase. The length and bond energy have been measured to be 97.06pm and 424.7 kJ/mol, respectively.
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