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A 0.374g sample of a metallic element, M, is completely dissolved in 100ml of 0.500N sulfuric acid. The liberated hydrogen occupied a volume of 320ml when collected over water at 25 degrees celcius and the pressure of the gas was equalized to the atmospheric pressure of 750mm as in this lab. Calculate the equivalent weight of the metal, M.
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,
What are the three major buffer systems of the body and what are the chemical equations
Give the shape of each molecule in problem and describe whether each molecule is polar or non polar and tell whether each is soluble or insoluble in water
What mass of ethanol, C2H5OH a nonelectrolyte, must be added to 10.0 L of water to give a solution that freezes at -10.0C? Assume the density of water is 1.0 g/mL. Kf of water is 1.86C/m.
how many grams of iron (2) chloride would you need in order to make 2.0 L of a .050 M iron (2) Chloride solution?
Determine why the 2s and 2p orbitals on Hydrogen are degenerate and they are not in the case of Lithium and calculate Kp at 5 degrees and enter your answer in scientific notation if delta H rxn= -128 kj/mol CH 3 OH,?
The surface area of 100 g of glucose > than that of 1 g. give explanation why the solubility does not increase with the amount of solid deposited at the bottom of the flask?
How many moles of KMnO4 are present in 25.0 mL of a 0.0900 M solution?
The purpose of this experiment is to find out which fabric out of polyester, polypropylene, cotton and wool is the most suitable to make a sling back chair.
If 4.50 g of methane gas (CH4) is in a 2.00-L container at 35°C, what is the pressure in the container?
The bromocresolgreen end point of the titration was reached after the addition of 30.00mL of hydrochloric acid solution. Calculate the concentration of the acid solution
How many gm of dry NH4Cl need to be combined to 2.30L of a 0.300M solution of NH3, to prepare a buffer solution of pH 8.85.
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