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How many grams of dry NH4Cl need to be added to 1.90L of a 0.400M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.55? Kb for ammonia is 1.8 x 10^-5.
A gas occupies 4.71 liters at 62°C and 795 torr. What volume will it occupy if it is cooled to 17°C and compressed to 911 torr?
Detremine the volume of CO2 produced at the temperature of 23 degree celsius and pressure of 0.985atm?
if it takes 6.02 kJ of heat energy to melt a mole of ice, how much heat is absorbed when 6.30 g of water melts?
If a single pill contains 0.150 grams of KCN How much HCl in grams would be necessary to consume all of the KCN
How much heat energy, in kilojoules, is required to convert 61.0 g of ice at -18.0 C to water at 25.0 C ?
What precautions or what type of actions should the EH&S or FS professionals take when faced with a situation involving polychlorinated biphenyls (PCB's.)?
The reaction of 2.5g of Al with 2.5g oxygen (actually) produces 3.5g of Al oxide. Calculate the % yield of aluminium oxide.
0.60 g of hydrogen chloride HCl is dissolved in water to make 7.5 L of solution. What is the pH of the resulting hydrochloric acid solution.
What mass of MgCl2 in grams must be added to 1.00 kg of water to prouce a solution that boils at 103.0 degrees celsius
An unknown consisting of a single sugar gives a negative fermentation test. Which one of the following tests would allow you to decide which of the five sugars used in this experiment you had?
The final temperature of the water and metal was 25.0 C. Assuming no heat is lost to the surroundings,calculate the specific heat of the metal and estimate its atomic weight
Need to calculate the heat formation of products, but have heat of formation for NaCl of concentration 1mol/L.
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