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Solid calcium oxide reacts with solid ammonium chloride to produce gaseous ammonia, water, and calcium chloride. In one experiment, when 112 grams of calcium oxide was mixed with 224 grams of ammonium chloride, 16.3 grams of ammonia was produced. What is the percent yield of ammonia in the experiment
What is the mole fraction of solute and the molal concentration for an aqueous solution that is 19.0% NaOH by mass?
what ions will the following elements form?
Predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixed:
Describe the titration curve for the titration of a weak base with a strong acid. Indicate the chemical reaction, the points that correspond to the equivalence point, the pH = pKa and the region with maximum buffering.
Using heat of fusion, specific heat of water, and/or heat of vaporization, calculate the amount of heat energy in each of the following. calories to condense 135 g of steam at 100^{circ}{rm C} and to cool the liquid to 15^{circ}{rm C} (two steps)
If 8.6 L of NO is combined with excess O2 at STP, what is the volume in liters of the NO2 produced?
A sample of 28 Mg decays initially at a rate of 53500 disintegrations per minute, but the decay rate falls to 10980 disintegrations per minute after 48.0 hours
Consider the following reaction: CO + 2H2= CH3OH, kp= 2.26 x 10^2 at 25C . Calculate delta G for the reaction at 25C under each of the following conditions.
Org chemistry lab Q lab 2: why does the water solubility of the acidic compound change when going from the aqueous base to the aqueous acid.?? pls write the eq'n to illustrate this change
What NaCl concentration results when 289 mL of a 0.680 M NaCl solution is mixed with 457 mL of a 0.330 M NaCl
How many moles of nitroglycerin and how many moles of gas(air, assume no nitroglycerin vapors present)were in the container originally?
Using a sample of 0.0355 gram of an unknown molecular compound is dissolved in 1.000 g of liquid camphor at 200.0°C. Calculate the molar mass of the unknown compound if the camphor freezes at 157.7°C upon cooling.
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