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in the following conditions calculate the moles of hydrogen and the pressure in each flask where the volume is negligible. Each flask is originally 275K with .455 mols of hydrogen gas and .7atm of pressure. Then one flask is heated to 500K while the other remains at 275K
You have 16 electrons, 16 protons, and 16 neutrons. You can combine them to make 8 Helium (He-4) atoms, 4 beryllium atoms (Be-8), 2 oxygen atoms (O-16), or one sulfur atom (S-32).
Buffering capacity You want a solution that will buffer the addition of either 10 micromoles of acid or 10 micromoles of base. Total buffer concentration is equal to the concentration of the acid plus the concentration of salt of the acid
The linear form (y=mx+b) of the Arrhenius equation is given below : ln K = -Ea/RT + Ln A 1) In order to find the activation energy (Ea) you will need to make a linear graph
How many grams of F- must be added to a cylindrical water reservoir having a diameter of 8.88 × 102 m and a depth of 78.88 m? (b) How many grams of sodium fluoride, NaF, contain this much fluoride?
A sample obtained from that mixture containing 443900 particles weighs 10.0g. Determine the number and percent relative standard deviation of NaCN particels from a sample of the mixture weighing 7.16g.
The excess I3 was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
Calculate ΔHo fusion and ΔSo fusion for the substance If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K. ?
Nitrogen trichloride, an unstable liquid, is placed in a 3.00 L container at 29ºC. The initial pressure in the flask is 1.00 atm due to the presence of air.
Ca(OH)2 (aq) was prepared) wasn't truely saturated (it was unsaturated) how would this affect the calculated value of the Ksp?
X reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst to form 1,2-dimethylcyclopentane. Treatment of X with ozone follwed by zinc in aqueous acid gives a dialdehyde.
Calculate the standard enthalpy of the reaction for the oxygenation of deoxyribose to ribose
What is the identity of the second major peak in the chromatogram and what is the third. What is your basis for these assignments
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