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a chemical reaction release 1240 J of energy. the energy is all absorbed by water (423 g) containing the reactants. if water was initially at 19.6 degrees, what will be it final temperature
What is the percent by mass of NaHCO3 in a solution containing 80 g of NaHCO3 dissolved in 600 mL of H2O?
What volume of N2O, collected over water, at a total pressure of 94kpa and 22 Celcius, can be produced from 2.6g of NH4NO3.
A 3.00-L flask is filled with gaseous ammonia,NH3 . The gas pressure measured at 20.0 deg C is 2.05 atm . Assuming ideal gas behavior, how many grams of ammonia are in the flask?
What is the smallest possible integer coefficient of S in the combined balanced equation and compute the final pressure in the tank if nothing else is altered in the surroundings.
When 0.549 moles of a certain gas fill a balloon the volume is 75 mL. If enough of the same gas is added to the balloon until 1.44 moles of gas are present, what is the new volume of the balloon?
how many kilocalories are needed to heat the 1700kg of water from 56 degrees fahrenheit to 167 degrees fahrenheit?
A 125g metal block at a temperature of 93.2 degrees Celsius was immersed in 100g of water at 18.3 degrees celsius. Given the specific heat of metal (s= 0.900j/g x degrees celsius)
Classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and water during dissolution
Determine the second order rate constant from the initial concentration and half life and what is the second order rate constant?
Write the balanced equation for the decomposition of one mole of NH4CO2NH2. b) Calculate K at 313 K.
When burned in oxygen, 10.0 g of phosphorus generated enough heat to raise the temperature of 2950 g of water from 18.0oC to 38.0oC. The heat of formation of P4O10 from P4(s) and O2(g) is:
Al(OH)3 + 3HCl ---> AlCl3 + 3H2O Determine the moles of acid neutralized if a tablet contains 0.200 mol Al(OH)3
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