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Compute the pH at the equivalence point in titrating 0.110 M solutions of each of the subsequent with 7.0x10^2 M NaOH.
1. hydrobromic acid (HBr)
2. lactic acid (CH3CH(OH)COOH)
3. sodium hydrogen chromate (NaHCrO4)
Aluminum has chemical propertied that are similar to magnesium. What observation might you expect with the addition of 6M HCl to an aluminum strip
calcium phosphide reacts with water to produce calcium hydroxide and phosphine. a if you start with 15.0 g of calcium
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.6. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.95 M B(aq) with 0.95 M HCl(aq).
Fluorine-18, which has a half-life of 110 min, is used in PET scans. (see section 4.5.) If 100 mg of fluorine-18 is shipped at 8 A.M., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:..
you are the environmentalofficer attatched to pesticide and toxic chemicals control board. prepare a technical brief
Acid catalyzed hydration of 3-hexene gives only one alcohol with the molecular formula C6H14O. A) Draw the structure of 3-hexene.
How much heat energy, in kilojoules, is required to convert 65.0g of ice at 18.0 degrees celcius to water at 25.0 degrees celcius.
The frequency factor as well as the activation energy for a chemical reaction are A=8.0x10-12 cm3/(molecule*s) and Ea=15.7 kJ/mol at 309 K, respectively. Find out the rate constant for this reaction at 309 K. Give answer in cm3/(molecule*s)
Mg3N2(s) + 6H2O(l) → 3Mg(OH)2(s) + 2NH3(g) How many grams of H2O are needed to produce 150 g of Mg(OH)2?
explain why the vitamin tablet is crushed before titrating with the iodate titrant.
Several minerals are metal carbonates as well as siderite is a mineral that is largely iron(ll) carbonate. State a balanced equation for the reaction of siderite with nitric acid.
A gas sample has an original volume of 580 ml when collected at 1.20 atm and 22°C. If a change is made in the gas pressure which causes the volume of the gas sample to become 1.45 liters at 40°C, what is the new pressure
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