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A balloon was filled to a volume of 2.50 \rm L when the temperature was \rm 30.0^{\circ}C. What would the volume become if the temperature dropped to \rm 11.0^{\circ}C
the pH of a solution is defined as a measure of its hydrogen ion concentration. which of the following correctly defines the relationship between the pH and the hydrogen ion concentration of a solution
An object weighs 1.2 pounds and has a volume of 14.6 in squared. What is the density of the object. Express the answer in g/mL
thomas poured 25 ml of .60 m hcl into a large bottle. he then added enough water so that the new diluted concentration
What is the percentage purity of your ldh column fraction? 2. How many total mg of ldh are there in your column fraction?
water skier is pulled by a net force of 180 N and has an acceleration of 2.4 m/s2. What is the mass of the skier?
A 5 g antacid tablet listing aluminum hydroxide, Al(OH)3, as its active ingredient requires 138.60 mL of 0.1111 M hydrochloric acid to neutralize via titration. What is the percent (w/w) of aluminum hydroxide in the tablet
The temperature in the laboratory was 23°C and the barometric pressure was 621. mm Hg. You will need to look up vapor pressure of water at that temperature. Find the equivalent mass of this metal.
When you go on the protein databank and look at the Ramachandran plot, it gives you 4 plots (general case, glycine, proline, and pre-proline).
Calculate the standard reduction potential and standard apparent free energy change for the transfer of a pair of electrons from FADH2 to 1/2O2. Show all calculations.
If the anhydrous compound (AC) in the preceeding problem has a molar mass of 160g/mol, what are the water crystallization (X) and formula for the hydrate
What is the "mass per volume" percent of a household bleach product? I believe the question is asking for a calculation but I do not know how to proceed
What is the pH of a solution which results from mixing 150 mL of 0.50M acetic acid and 150 mL of 0.50M sodium hydroxide at 25oC?
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