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Write the set of 4 quantum numbers for the following: a. The 29th electron of Ga b. The 55th electron of Cs c. The last electron of Pb i will rate these later when I finish looking through the responses
Determine the following characteristics of the titration curve for 25.0 mL of 0.400 M NH3(aq) titrated with 0.335 M HI(aq). (For NH3, Kb = 1.8x10-5.) Enter scientific notation as 1.23E4
A student mixes 99.1g of water at 80.1C with 32.5g of water at 27.3C in an insulated flask. What is the final temperature of the combined water
how many grams of magnesium chloride mgcl2 would be required to prepare a 0.2019 m mgcl2 solution by combining this
What volume of H2 could be produced at a temperature of 19 oC and a pressure of 764 torr by the reaction of 2.98 g of aluminum with hydrochloric acid.
The equilibrium internuclear distance of deuterium iodide, DI, is 160.4 pm, where 1 pm = 1x10-12m. The relevant atomic masses are: mD = 2 amu and mI = 127 amu
what volume of 3m sulphuric acid is required to neutralize all of the c7h5nao3 and the excess sodium hydroxide present
Write the formula for the ion formed when each of the following elements loses its valence electrons?
When 50 grams of iron absorbs 1.0 kJ of heat its temperature increases by forty degrees celsius. What is the molar heat capacity of iron?
Determine the value of pH of given solutions that are (a) a solution that is 0.40 M CH3CO2H, (b) a 0.40 M CH3CO2H solution, (c) 0.20 M NaCH3CO2. And explain your answer too?
There is an increase in temperature of 56 K. Calculate the heat lost or gained by the system in response to this change in the external temperature. Express your answer in J. Heat capacity for Helium = 20.8 J/(mol K) Molecular weight for Helium = ..
How many planes of symmetry does a benzene molecule possess. What chloro-substituted benzene of formula C6HnCl6-n has exactly four planes of symmetry
What is the approximate ?H in kJ for the following reaction as written: 2NH3(g) --> 3H2(g) + N2(g) Careful, what kind of bond does the nitrogen molecule make
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