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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
How long would it take for 1.50 mol of water at 100.0 C to be converted completely into steam if heat were added at a constant rate of 21.0 J/s?
The student then pipets exactly 3.10 mL of the solution into a 100 mL volumetric flask and dilutes to the line with FeCl3 solution. What is the ASA concentration of the final solution?
Calculate the number of moles of an ideal gas if it has a pressure of 1.02 atm, a volume of 2.76 L, and a temperature of 222 oC. Use R = 0.0821 L-atm/mol-K for the value of the gas constant.
how many grams of vinegar are required to react completely with 25.0g of baking soda.
What volume H2 can be produced at 780 mm Hg and 15 degrees Celsius from 1 mole Al, 1 mole NaOH and 2 moles H2O. --> Al(s) + NaOH(aq) + H2O (l) ---> NaAl(OH4) (s) + H2(g)
write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the
If the pressure of "wet" hydrogen is assumed to equal atmospheric pressure and the volume is recorded, will the calculated moles of hydrogen gas be too high or too low?
Explain how the rate of the forward reaction compares to the rate of the reverse reaction at equilibrium
Two solutes were used to study diffusion in liquids, methylbenzene, which is a small molecule that can be approximated as a sphere, and a liquid crystal that is long and rod like.
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000mL solution. Calculate the molarity of the HCl solution, the {H3O}, and the pH.
Calculate the standard reduction potential for the X half-reaction. The standard reduction potential of the copper half-reaction is 0.52 V. (Hint, write the half-reactions and the overall chemical equation for the spontaneous reaction.)
in a car engine gasoline represented c8h18 does not burn completely and some co a toxic pollutant forms?in a car engine
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