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What is dynamic chemical equilibrium and how it is possible that a reaction can still be occurring, yet the concentrations of both reactants and products be unchanged?
A suspected case of food tampering involving a soft drink containing FD&C Yellow Dye No. 5 has occurred. It is suspected that part of the contents was dumped and a household cleaner was added to it. Explain how one might use spectrophotometry to prov..
Problem- A saturated elution of Ag2SO4 was prepared. Calculate the [Ag+] and [Sr+2] in the saturated solution. pKsp for Ag2SO4 is 4.82 and 6.55 for SrSO4
What is the approximate pH of a solution prepared by adding 20 mL of 0.10 M NaOH to 200 mL of 0.10 M HCl?
Potassium-40 has a natural abundance of 0.0118%. Explain how many atoms of potassium-40 are present in a 1.35 g sample of KCl?
The Kingston Steam Plant burns 14,000 tons of coal each day and generates 1010 kilowatts-hours of electricity each year (enough for 700,000 homes). Coal is primarily carbon which undergoes combustion in the following reaction
Problem- What is the importance of the node found in the anti-bonding molecular orbital to the molecular bonding in H2. It increases the strength of the molecular bond because is shields the repulsive force between the two positive nuclei.
Tuning proton affinity. The pKa of an acid depends part,y on its environment. Predict the effect of each of the following environmental changes on the pKa of a glutamic acid side change.
Using the standard entropy values: NO(g), S° = +210.6 J mol-1 K-1 O2(g), S° = +205.0 J mol-1 K-1 NO2(g), S° = +240.5 J mol-1 K-1 calculate the standard entropy change
Which one of the following is most soluble in water?CH3OHCH3CH2CH2OHCH3CH2OH
Examine the Lewis structure of methylene blue and explain why it is a cation instead of a neutral species. Where would the extra electron otherwise reside
State Polonium 218 is an alpha emitter with a half life of 3.0 minutes. Explain if a sample contains 55 mg of Po-218 (atomic mass = 218.008965), how many alpha emissions occur in 25.0 minutes. If the Polonium is ingested by a person to define what..
The streams are labeled as follows: 3 - boiler to turbine 1; 4 - turbine to reheat; 5 - reheat to turbine 2; 6 turbine to condenser; 7 condenser to pump; 8 pump to boiler. Determine the following
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