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A solution containing 50.0 g NaNO3 in 75.0 g of H20 at 50°C is cooled to 20°. How many grans of NaNO3 remain at 20°.
if 836.8 Joules are added to 25 grams ammonia at 37 degrees Celsius, what will the final temperature be?
An iron ore sample is a mixture of Fe2O3 and several impurities. A 752. g sample of the impure iron ore is heated with excess carbon.
Calculate the total volume of gas (at 124C and 758mmHg) produced by the complete decomposition of 1.45 kg of ammonium nitrate.
What volume would be occupied by 100 g of oxygen gas at a pressure of 1.50 atm and a temperature for 25° c?
Write the formulas for each of the following ions and compounds: (a) tetrahydroxozincate(ll) (b) pentaaquachlorochromium
514 mL of sulfuric acid is exactly neutralized with 453 mL 0.180 M lithium hydroxide solution. What is the concentration of the acid solution?
Calculate the molar solubility of strontium chromate in water at 298 K if Ksp = 3.6 * 10-5.
The final temperature of the water is 27.8°C. Calculate the mass of water in the calorimeter. The correct answer should be 6.2x10g
A pound of coffee beans yields 70 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 1.0 g of coffee beans.
Meaning, use and calculation of empirical formulas, In this introduction are given the explanation of how to find out an empirical formula if one has found out the chemical elements of an unknown substance and measured their ratio of masses
Hypochlorite Oxidation of Cyclohexanol to Cyclohexanone, Basically in this experiment, we took some cyclohexanol and reacted it with hypochlorite to form cycohexanone.
A 3.77g sample of oxalic acid (H2C2O4x2H2O) was dissolved in enough water to make 1000 mL of solution. Then 17.15mL of this oxalic acid solution was titrated to the end point with 22.05mL of an unknown sodium hydroxide soloution.
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