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Calculate the pH during the titration of 40 mL of 0.1M HCL with 0.1M NaOH solution after the following additions of base:
a) 0 mL
b) 25 mL
c) 39 mL
d) 39.9 mL
e) 40 mL
f) 40.1 mL
g) 50 mL
A given mass of radium is over a million times more radioactive than the same mass of uranium
Phosphorus-32 is used in the form of Na2HPO4 in the treatment of chronic myeloid leukemia, among other things. (a) The isotope decays by beta-particle emission. Write a balanced equation for this process.
A student calculated an averagelue of 4289 for a siyle's law constant k. Based on the number ofgnificant figures in the measured thantities, how many significant figures should Bois result have after proper qu rounding
When a mixture of PH3, P2, H2 comes to equilibrium at 873 K according to the reaction 2PH3 (g)= P2(g) +3H2(g) Kp=398 at 873K
whether these collisions are elastic or inelastic makes no difference as long as the walls are at the same temperature as the gas. Explain. Explain the kinetic molecular theory of gases
A 530. g piece of copper tubing is heated to 89.5°C and placed in an insulated vessel containing 159 g of water at 22.8°C. Assuming no loss of water and heat capacity for the vessel of 10.0 J/K
A smple of mixture of NaCl, Caco3 and SiO2 weighed 7.30 grams. During the water wash the sample lost 2.21 grams. After treatment with HCL, the sample weighed 2.05 grams.
If a 0.10M solution of HA has a pH of 5.83 at 25 degrees C, what is deltaG0 for the acid's dissociation at 25 degrees C
Which of the compounds contain chiral centers? (you may choose more than one answer)
It is important that the flask used for molar mass determination is completly dry before adding volatile liquid unknown to it.why? what would happen to any droplets of wash-water remaining in the flask when the temperature of the flask is raised t..
If the solution had 100mg of trans-lycopene in it, how many moles of elemental bromine would be required to completely react at all possible reaction sites? How many total stereocenters are formed. How many different products are there
Show why the transfer of heat from an object with lower temperature to an object with higher temperature violates the second law of thermodynamics.
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