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Compute the change in pH when 7.00mL of 0.100 M HCl(aq) is added to 100.0mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
Compute the change in pH when 7.00mL of 0.100 M NaOH(aq) is added to the original buffer solution.
What is the pH of a solution prepared by mixing exactly 64.9 mL of 0.200 M HC2H3O2 with 24.7 mL of 0.400 M KOH. (Ka for acetic acid equals 1.8 x 10-5).
Indicate how each of the following errors will affect the calculated molarity of acetic acid.(high,low or no effect) and explain why. 1) The actual molarity of the NaOH was .2000M rather than .3000M
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
1. what is the greenhouse effect?2. how does the excess co2 gas in the atmosphere cause the greenhouse effect?3. what
Observe the following reactants and predict which of the following may form the potential products given the values for the energy of activation, , and enthalpy of the reaction, , in combination with the molecular orientation.
What is the partial pressure in atm of N2 of ths mixture if it is held in 12.60-L vessel at 15 degrees celcius. What is the partial pressure in atm of H2 of this mixture if it is held in a 12.60 -L vesssel at 15 degrees celcius
What is the purpose of running both Dalton Vll mixed markers and lanes with individual markers on SDS-PAGE?
the following experiment was carried out with a newly made gaseouschlorofluoro carbon. 50.0 ml of the gas effused
The solution is is undiluted. It spreads out into a diameter of 22.56 meters. Determine the length of a Palmatic-B acid molecule in angstroms.
Trichloroethane, C2H3Cl3, is the active ingredient in aerosols that claim to stain-proof men's ties. Trichloroethane has a vapor pressure of 100.0 mm Hg at 20.0 C and boils at 74.1 C
A Venus probe detects an element with a first ionization energy of 2088. Given the table of known ionization energies provided in the introduction, what is the most likely identity of this element
what is the molarity of a solution of silver perchlorate agclo4 if 3.2 moles of silver perchlorate is dissolved in 1.5
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