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A solution is made by mixing 50.0 ml of a HCl (aq) solution which has a pH of 3.00 with 50.0 ml of a KOH solution which has a pH of 12.00. What is the pH of the mixture at 25.0 degrees Celcius?
What is the molarity of the stock solution of luminol? What volume of the stock solution (Part A) would contain the number of moles present in the diluted solution (Part B)?
what is the concentration of a nitric acid solution if a 10.00ml sample of the acid reqires 31.25ml of 0.135m koh for neutralization.
How many grams of Helium does a 25.0 Liter balloon contain at 102.0 kPa and 24 degrees Celsius?
What is the best air/fuel ratio for an automobile engine? b) If the mixture is made leaner, What happens to the hydrocarbon emissions?
What weight of sodium acetate, NaCO2CH3, must be added to 500.0 mL of 0.500 M acetic acid HCO2CH3 to produce a buffer solution
A solution containing Pt4+ is electrolyzed with a current of 4.20 A. How long will it take to plate out 65% of the platinum in 0.50 L of a 0.010 M solution of Pt4+
A gas evolved during the fermentation of sugar was collected at 22.5 c and 702 mmhg. After purification it's volume was found to be 25.0 l . How many moles of gas were collected.
A form of the polypetide hormone angiotensin II has the amino acid composition ( ASP, ARG, ILE, MET, PHE, PRO, TYR, VAL). The following observations are made
How do the strengths of London forces compare in CO2 and CS2? Which of these is expected to have a higher boiling point?
What volume of 0.955 M HCl, in milliliters, is required to titrate 2.152 g of Na2CO3 to the equivalence point?Na2CO3(aq) + 2HCl(aq) ---> H2O(l) + CO2(g) + 2NaCl(aq)
Ttotal ammonia concentration = 0.400 M. determine What is the concentration of NH 4 + ?
If 420 Joules are added to 20 grams of water to 30oC, what will be the final temperature of the water?
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