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1. How many grams of water are needed to react with 78.0g CaCN2?
2. How many grams of NH3 are produced from 5.19g CaCN2?
3. How many grams of CaCO3form if 157 g water react?
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass.
Draw a doagram to show the changes in potential energy that occur from the rotation around the C1-C2 bond of 1-bromopropane.
A buffer containing 0.4316M of acid, HA, and 0.1549M of its conjugate base, A- has a pH of 2.20. What is the pH after 0.0019 mol NaOH
Using a reasonable range of temperatures, determine the apparent (or global) activation energy of NO formation during a combustion process
What is the final pressure in the container if 705 mL of helium gas at 205 mm Hg is compressed to 255 mL?
What are the products from the combustion of 2-methyl-3-ethyloctane?
Some KCl is dissolved in water at 25 degree Celsius, where it completely dissociates. The vapor pressure of pure water at 25 degree celsius is 28.3 mmHg.
what is the maximum amount of P4S10(444.545 g/mol) which could be formed from 17.12 g of P4 (123.895 g/mol) and 0.137 mol of S8 (256.52 g/mol).
B2H6 + 3O2= B2O3+3H2O ;DELTA H=-2035KJ how much heat is released when a mixture of 7.35 g B2H6 and 2.60 g O2 is burned?
a solution made by adding .106 mol of CH3COOH to 1.0 kg of water is found to freeze at -.203 C. Calculate the percent of the acid that has undergone ionization. The molal freezing point constant of water is 1.86
A 41 kg person drinks 280. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 18% of the energy in milk is converted to mechanical work,
used in high speed centrifuges to separate the parts of a biological cell. How many liters of 3.07 M sucrose contain 245 g of solute?
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