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If the antacid for analysis is known to be Phillips' Milk of Magnesia, the solution does not need to be heated, but if the sample is Mylanta, the solution must be heated. Explain the difference in experimental procedures
A solution containing 50.0 mL of 0.15 M C2H3COOH is titrated with 0.15 M NaOH. What is the pH of the solution after the addition of 25 mL of NaOH. pKa for C2H3COOH is 4.76.
How is the ideal gas law modified to account for the finite volume of molecules? The temperature of the sea bed 60 m below the surface and at the surface are both 20C. A rubber balloon is inflated at the sea bed with 2.0 mole gas neglecting the wo..
Active ingredient in household bleach is NaOCl. Find % concentration (w/v) in household bleach. (Mass of NaOCl per mL of solution) *Atomic mass of NaOCl = 74.44217 Question 2: Using the % w/v of NaOCl on the bleach bottle, calculate the percent er..
The boiling point of a substance is defined as the temperature at which liquid and vapor coexist in equilibrium. Use the heat of vaporization (30.91kJ/mol) and the entropy of vaporization
An electrochemical cell is constructed with a zinc metal anode in contact with a 0.0520M solution of zinc(II) nitrate and a silver cathode in contact with a 0.00420M solution of silver(I) nitrate
A 15.0 mg sample of a protein is dissolved in water to make 27.0 ml of solution. The osmotic pressure of the solution is 0.56 torr at 25 C. What is the molar mass of the protein?
A gas expands and does P-V work on the surroundings equal to 321 J. At the same time, it absorbs 177 J of heat from the surroundings. Calculate the change in energy of the gas.
how many milliliter of 0.165M KMnO4 are needed to react with 108.0ml of 0.165 M oxalic acid? How many milliliter of 0.165M oxalic acid are required to react with 108ml of 0.165M KMnO4
The valve between these Tanks X and Y is opened and the gases are permissible to mix. After the gases have had time to mix, calculate the partial pressure of the oxygen gas?
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
Draw the exo and end product for the reaction of cyclopenadiene and malice anhydride
The mineral galena is composed of lead (II) sulfide and has anaverage density of 7.46 g/cm3.(a) how many moles oflead(II) sulfide are in 3.58ft3 of galena b. How many Lead (ii) atoms are in 1.99dm3 of galena
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