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Background:An experiment was performed using HCl. We wrote down the molarity on the bottle and then used a pH meter to find the pH. From the pH we then calculated the [H+] (hydrogen ion concentration) from the pH that we measured.the question is:How does the nominal concentration of HCl compare with the molar concentration of H+, and are they supposed to be the same?
What NaCl concentration results when 294 mL of an 0.780 M NaCl solution is mixed with 447 mL of a 0.200 M NaCl solution
Describe the major absorption bands in the IR spectrum - indicate the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
If the heat capacity of the calorimeter and contents was 12.05kJ/C, what is the value of q for burning 1.25 mol of benzene at constant volume and 25Ce reaction is C6H6(l)+15/2O2(g)?6CO2(g)+3H2O(l)
Using a Sample of 0.3991 grams of an unknown monoprotic acid, HA, which combines with Sodium hydroxide according to the balanced equation HA + NaOH ® NaA + H2O when 35.30 mL of 0.1086 M Sodium hydroxide is required to titrate the acid to the equiv..
Calculate the pressure of the gas mixture and the partial pressure of each constituent gas if the mixture is in a 11.0 L vessel at 27 degree celsius
How many moles of sodium choloride should be put in a 50.0 ml volumetric flask to give 0.15 molarity NaCl solution when the flask is filled to the mark with water
Cells of a certain human tissue have an average diameter of 20µm. A single circular well of a 100-well plate has a diameter of 5.0 mm. What is the maximum number of cells that can be grown on the surface of a single well
Write a hypothetical inner-sphere redox mechanism for the reaction of [Cr(H2O)6]2+ with cis-[Co(NH2CH2CH2NH2)2I2]+ (aq) in acid solution to give (ultimately) cis-[Cr(H2O)4I2]+, Co2+(aq), and [NH3CH2CH2NH3]2+."
A mixture of 100 g of K2Cr2O7 and 200 g of water is stirred at 60 C until no more of the salt dissolves. The resulting solution is poured off, leaving the undissolved solid behind.
Determine the molarity of each of the following. be sure to show the setups by which you get the answers. Na+ and SO3(2-) in .647 M Na2SO3 Ca2+ and SO4 (2-) in .035 M CaSO4
when a molecule must have a double bond inaccordance with the octet rule what shape does it have accordingto vsepr? or
It takes 245 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of light (nm) that can be used to eject electrons from the surface of this metal via the photoelectric effect?
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