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How many mL of 0.220 M of NaOH are needed to completely hydrolyze 2.40 grams of propyl acetate?
it is observed that a volume of 29.15 mL of KOH was neede to complete the process of titration. Determine what is the concentration of this unknown HCl solution?
What is the total pressure of a mixture of gases made up of CO2, O2, and H2 if the partial pressures are 2.2atm, 400mmHg and 112kPa respectively.
A certain pesticide is fatal to fish fingerlings at a level of 0.5 parts per million in water. A leaking metal can containing 10.0 kg of the pesticide was dumped into a stream with a flow of 10.0 Liters per second moving at 0.7 km/hr.
A compound of molecular weight 280 g/mol a concentration of 15.0 micrograms per ml absorbs 65 percent of radiation at a certain wavelength in a 2 cm cell.
What is the molar mass of a gas if 0.358 g of the gas occupies a volume of 186 mL at 5.00C and 1.10 atm.
Compute the number of moles of H2O will be formed from the reaction 75.1g benzene?
From the heats of reaction as given 3O2(g) ---> 2O3(g) DH = +284.6 kJ, 2H2(g) + O2(g) ---> 2H2O(g) DH = -483.6 kJ
What is the heat change of H 2 O If the final temperature of the mixture = 25 degree celsius?
Determine how many moles of Trisodium phosphate would be required to react with 4.0mol of Silver Nitrate?
Identifying and balancing the different types of chemical reactions. Evaluate which processes represent chemical reactions.
If 2 new elements have been discovered and one is R, a new element from the family with 3 valence electrons and Z, a new element from the family with 6 valence electrons. Write the formula for the binary compound between element R and element Z.
Determine how long will it take for the concentration to decrease to 0.13 mol/L express your answer in seconds.
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