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A 75.0- volume of 0.200 M NH3 (kb=1.8*10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 11.0 mL of HNO3.
When 0.8210g of naphthalene was burned in a calorimeter containing 1,000g of water, a temperature rise of 4.21 degree celcius was observed. What is the heat capacity of the bomb calorimeter excluding the water
the pressure in a sealed plastic container is 108 kpa at 41c. what is the pressure when the temperature drops to 22c?
The heat combustion of ch4 is 890.4 the heat capacity of h20 is 75.2. find the volume of methane measured at 298k and .690atm reauired to convert
What is the net charge at neutral pH of a tripeptide containing only alanine? How does the total number of negative and positive charges change following hydrolysis of the tripeptide
0.30 g of hydrogen chloride (HCl) is dissolved in water to make 4.5 L of solution. What is the ph of the resulting hydrochloric acid solution
What is the splitting of the signal in the 1H NMR spectrum for the methyl protons of ethane? What is the splitting of the signal in the 1H NMR spectrum for the methyl protons of 1-bromo-2-methylpropane? Please explain?
Solutions of sodium carbonate and silver (I) nitrate react to form solid silver (I) carbonate and a solution of sodium nitrate.
On average, what percentage of random rolls of three (3) regular playing dice should result in a combined value of 5
A container consists of CO2 gas at a temperature of 15 C and at a pressure of .990 atmospheres. The volume of the container is 500 mL. How many grams of CO2 would be in the container? (1 liter equals 1000 milliliters.)
An atomic emission spectrum of hydrogen shows the following three wavelengths: 1875nm, 1282nm, and 1093nm. Assign these wavelengths to transitions in the hydrogen atom.
Its atomic number was believed to be 126. What is the most probable distance of the innermost electrons from the nucleus of an atom of this element?
How do you calculate solubility percentage? For example if a out 5 grams of sugar in 50 ml of water, with the temperature of water being 20 degrees.
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