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How many grams of dry NH4Cl need to be added to 2.10 L of a 0.500 M solution of ammonia, to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8*10^-5.
A 1.80-L flask is filled with propane gas (C3H8), at 1.00 atm and -19.4°C. What is the mass of the propane in the flask.
You have been provided with a 0.1M aqueous solution of glycine at pH 9.0. Calculate how much (in ml) of 5M NaOH solution that you must add to 1 L of this 0.1M glycine solution in order to bring its pH to exactly 9.80
When 2 moles of Mg3N2 are allowed to react with water to form ammonia gas and magnesium oxide, how many moles of H2O are required?
Draw the 3-dimensional structural formula for ® 2 -iodopentane. Use the wedge and dashed line convention. Complete the table below based on whar you know about enantiomers.
How does one predict the regiochemistry of the products of aromatic reactions like nitration? What factors are responsible for the product ratios seen in such reactions?
if you burn 51.8 g of hydrogen and produce 463g of water, how much oxygen reacted?
Determine what volume would it occupy at zero degree Celsius temperature at same pressure? Express your Answer in units of mL
A tank of hydrogen has a volume of 22.9 L and holds 14.0 mol at 12.0 C, what is the pressure of the gas in atm
The polarogram for 20ml of solution that was 3.65*10^-3 in Cd2+ gave a wave for that ion with a diffusion current of 31.3µA . calculate the percentage in change in concentration of the solution
How many atoms of neon occupy a volume of 14.3 L at STP.
a gas sample has a volume of .150 L at a temperature of 256 K. What volume will the gas occupy at 288K?
The radius of the Earth is approximately 6370 km. if one could dig down straight towards the center of the Earth, one would find that the innermost 3480 km (the core) has an average density of about 11.g/cm^3.
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