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what volume of a 3.95M potassium chloride solution would be needed to make a 325 mL of a 2.67M solution...
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What is the theoretical yield of Fe if 8.29 grams of Fe2O3 are reacted with an excess of CO?
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One method used to store energy during times of low demand is by pumping water uphill into a reservoir. When...
A plant manufacturing nails and screws uses a large pool (volume = 10,000 L) to collect and treat its residual waste water before discharging it in a nearby stream. The manufacturing process makes use of a strong acid (HCl) and a weaker one (phosphoric a
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Distinguish Jacques Charles described the direct relationship between temperature and volume of all gases at constant pressure. Should...
Calculate the energy in the form of heat (in kJ) required to change 75.0 g of liquid water at 27.0...
As temperature increase,the solubility of most gases increases or decreases ?
How many moles of NaOH are contained in 65.0 mL of a 2.20 M solution of NaOH in H20?
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How many moles of xenon do 5.66x10^23 atoms equal ?
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Ionic, Covalent, or Both?
what is the initial concentration of H+ ions if there is 10.0 ml of dilute solution in the flask and...
Calculate the new volume for a gas that originally had a volume of 10.26 L at 2.8 atm and 344.3...
Iodine-131 is a radioactive isotope. After 9.00 days, 46.0% of a sample of 131I remains. What is the half-life of...
in the following reaction you started off with 210 grams of P4. When the group of scientists did the actual...
At constant pressure, what temperature must be reached to increase a 100-milliliter sample of a gas initially at 300K to...
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How would the increase in temperature affect the number of microstates available to a system?
why is it sometimes helpful to understand a system of nomenclature that has been replaced by another, more comprehensive system?
Why does it take more energy to remove an electron from Al+ than Al?
What is the mass of oxygen in 250g of sulfuric acid?
3.2g sample of air contains .00074g of hydrogen cyanide. determine concentration in parts per million, of the hydrogen cyanide in...
A 2.545g sample contains carbon, hydrogen and oxygen. It is subjected to carbon-hydrogen analysis and 3.703g of CO2 and 1.514g...
how many liters of O2 can be made from 342g H2O2 if the density of O2 is 1.428?
Balance: HBr + KHCO3 reacts to form H2O+KBr+CO2
A crystal of solute is added to a solution, and the crystal remains undissolved. The solution is best classified as (1)...
explain how the iron atom can form both an iron 2+ ion and an iron 3+ ion ?
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