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Problem- Calculate the molarity of a solution by adding 44.9mL of concentrated perchloric acid (70.5% by mass, density is 1.67g/mL) to some water in a volumetric flask, then adding water to the mark to make exactly 500 mL solution.
Write down the entire answer of above question in short and simple way
We have noted that water level rises to 62.4mL when a piece of metal of 48 grams is dropped into 50.0mL of H 2 O in a graduated cylinder. Determine the density of this metal?
Write a balanced half-reaction for the reduction of hydrogen peroxide to water in an acidic solution. a. 2H2O2(l) + 2e- --> 2 H2O (l) + O2(g)
Consider the following overall reaction which is experimentally observed to be second order in AB and zero order in C: AB + C ----> A + BC Determine whether the mechanism below is valid for this reaction.
What are the energies of the lowest five energy levels in a 3 dimensional box where a=b=c and the degeneracy of each level
Calculate the mass in grams of calcium bromide the chemist has added to the flask. Round your answer to 3 significant digits.
When SiO2 is heated to melting, it reacts with solid carbon to form liquid silicon and carbon monoxide gas. in an industrial preparation of silicon, 155.8 Kg of SiO2 reacts with 78.3 Kg of carbon to produce 66.1 Kg of silicon.
what radial position is the velocity of an individual fluid element equal to the average velocity of the fluid? (r= r subscript c and 0
Describe the Bronsted terminology with respect to acids and bases, then describe reaction between Al(OH)3 and OH- using bronsted terminology
how does temperature affect the equilibrium constant of the reaction between ethanoic acid and ethanol (condensation reaction at room temperature and pressure.
scl2 state the molecular polarity in a 3d sketch of youmolecule and lable the dipole moment of each bond state
A buffer is made from benzoic acid and sodium benzoate. How many grams of the acid would you have to mix with 14.4 g of the sodium salt to have a liter of a solution with a pH of 3.88. The Ka of benzoic acid (C4H5CO2H) is 6.3 x 10-5.
a 2.52-g sample of a compound containing only carbon hydrogen nitrogen oxygen and sulfur was burned in excess o to
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