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Octane has a density of 0.692 g/mL at 20 Celsius . How many grams of O2 are required to burn 1.30 gal of C8H18 ?
The solubility product of PbBr2 is 8.9x10^-6. Determine the molar solubility in the following. (a) pure water (b) 0.20 M KBr solution (c) 0.15 M Pb(NO3)2 solution
Calculate how many moles of nitrogen will be required to make 10.0 moles of NH 3 and calculate what is energy of each pulse If each pulse contains no of photons =1.20 x 10 18
Compare a refrigerator set at four degree celcius and a freezer set at minus twenty degree celsius, both of which are operating in the room at the temperature of eighteen degree celsius.
How much energy is required to boil 45.5g of water at 100 degrees C at sea level? The molar heat of vaporization of water is 40.6 kJ/mol.
A 1.80 M solution of 56 ml is diluted to a volume of 218 milliliters a portion of that solution of 109 milliliters is diluted using 149 milliliters of H2O. determine the final concentration of this solution
Calculate the mass in grams for a sample of Al that absorbs 1.70kJ when the temperature increases from 56 degree Celsius to 177 degree Celsius?
What volume of .250 M NaOH is required to neutralize a 10mL sample of .750 M HCl.
A nugget of pure gold of 4.80 grams absorbed heat of 283 Joules. if the temperature was 23.0°C initially then determine what was the final temperature of the Au gold it is given that the specific heat of Au= 0.129 J/(g·°C).
Calculate the partial pressure (in atmospheres) of each gas, Assuming that the total pressure of the gases is 1.34atm{rm atm} and that their mole ratio is 94 : 4.0 : 1.5 : 0.50,
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?
The vapor pressure of water is 28.3 torr at 29°C then determine what is the partial pressure of oxygen collected if a reaction at that temperature produces Carbon Dioxide which is collected over water at a total pressure of 576 torr, ?
Calculate the mass of AgNO3(s) that must be added to 0.500 L of a solution of 0.154 M NaClsolution to precipitate ‘all' of the chloride ion. The ‘all' means that we want to add the same number of moles of silver ion.
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