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Ammonia can be made by reacting calcium cyanamide (CaCN2) with water as shown:CaCN2 + 3 H2O => CaCO3 + 2 NH3.How many grams of water are required to react with 212.9 g of calcium cyanamide?
In an electrolytic cell Mn2+ is reduced to Mn and Sn is oxidized to Sn2+. Write an equation for the half-reaction occurring at the anode and at the cathode.
The voltage across the leads of a glass pH-reference combination electrode immersed in a solution of pH 8.00 was 133 mV. Calculate the expected voltage if the pH of the solution is raised to 9.00
When 10.0 g of NH3 reacts, the actual yield of N2 is 8.50 g. What is the percent yield?
calculate the minimum energy a photon must have to produce an electron hole pair in an extrinsic semiconductor of band gap 1.3 electron volts.
Consider the following reaction at constant P. Use the information here to determine the value of ?Ssurr at 355 K. Predict whether or not this reaction will be spontaneous at this temperature.
The precipitate SnO2·4H2O was removed by filtration. The resulting filtrate and washings were diluted to a total volume of 250.0 mL. A 15.00 mL aliquot was buffered and titration of the lead, copper, and zinc required 35.78 mL 0.001500 M EDTA.
What volume of .250 M calcium chloride would be required to precipitate silver chloride if it is mixed with 600.0 ml of 0.650 M Silver nitrate.
An organic compound has a molar mass of 150.5 g/mol and contains 11.30% hydrogen atoms by mass. How many hydrogen atoms are in each molecule of this compound?
Calculate the standard Gibbs free energy and the equilibrium constant at 298 K and at 400. K for the reaction PbO(s) + CO(g) ? Pb(s) + CO2(g).
Write complete ionic equation to show the reaction of aqueous Hg2NO32 with aqueous sodium chloride to form solid Hg2Cl2 and aqueous sodium nitrate.
Rank the following bonds according to increasing polarity.
how many grams of potassium bromide are required to prepare 350 mL of a .200 M solution.
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