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Some sample solution was spilled into the outside of the graduated cylinder while preparing the sample, and before determining the volume. The sample sticks to the graduated cylinder. How will this affect your density measurement? Why?
C6H5NH3Cl is a chloride salt with an acidic cation. If 19 g of C6H5NH3Cl is dissolved in water to make 150 mL of solution, what is the initial molarity of the cation.
What would the net ATP yield if a muscle cell takes a glucose molecule, stores it as part of a glycogen molecule and later releases it and sends it through glcolysis.
If the titrant has a molarity of 0.2750 M and there are 45.00 mL of analyte present, what is the molarity of the analyte?
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 7.60x10^2 cal of work done on it
What volume of 2.94 M HNO3 can be made by diluting 128 mL of concentrated nitric acid (16.0 M HNO3)
When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately. What is wrong with your setup
The steel bomb of bomb calorimeter, which has a volume of 75 mL, is chaged with oxyen to a pressure of 145 atm at 22 C. Calculate the moles of oxygen in the bomb. Calculate the grams of oxygen in the bomb.
How many electrons are around the central atom in the expanded valence in I3-; where the 3 is subscript and the negative sign is superscript
What is the mass of a single weight (assume one step work) you need to put on a bike pump to take the air in the pump from 1 atmosphere to 9 atmospheres?
The water level in a graduated cylinder initially at 211 rises to 282 after a piece of lead is submerged. What is the mass in grams of the lead.
Calculate the pH of a solution made by adding 69 g of sodium acetate, NaCH3COO, to 37 g of acetic acid, CH3COOH, and dissolving in water to make 200. mL of solution.
Calculate the wavelength of light that would be required to excite an electron from the HOMO to the LUMO. Hint: Recall that (triangle)E=hv=hc/lambda, and that 1 eV=1.602 x 10^-19 Joules.
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