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If a weak acid solution, HA is 0.3M and ionizes 1%, what will be the concentrations of [HA], [H3O+],and [A-] at equilibrium?
In a reaction 8200 g of sodium reacts with 74.00 g of ferric oxide to form sodium oxide and iron metal. Calculate the mass of sodium iron produced.
Find out the Celsius temperature of 2.49 mol of gas contained in a 1.00 L vessel at 1.8 atm pressure.
An unknown salt is either NaF, NaCl or NaOCl.When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08.
The mean velocities of HCl gas and NH3 gas at 25 degrees Celsius are 450m/s and 660m/s respectively. With these speeds in mind, briefly explain why so much time was required for the HCl and NH3 to meet in the glass tube
Name 4 properties of a compound that is directly influenced by the polarity of the compond. And state the 2 most important factors that affect the
If 500 g of KCIO3, decomposes and produces 303 g of KCl, how many grams of O2 are produced?
The Nernst equation applies to both cell reactions and half-reactions. For the conditions specified, calculate the potential for the following half-reactions at 25 C 2Cr3+
the initial dose of a drug ina animal was 25.0mg/kg doy weight. After 2.0 hours this concentration had dropped to 15.0mg/kg body weight. if the drug is eliminated metabolically by the first order process
Assume that you dissolve 10.7g of a mixture of NaOH and Ba(OH)2 in 229.5 mL of water and titrate with 1.49M hydrochloric acid. The titration is complete after 108.7 mL of the acid has been added.
A sample of gasoline contains various hydrocarbons, which comprise atoms of carbon, hydrogen, and oxygen. The hydrocarbons mix together uniformly to form gasoline.
Draw the structure of the peptide WRCFQ. Show the ionization state that would be the major form at pH 7. (Note: this question addresses your knowledge of the one or three letter codes for amino acids,
If 30 mL of 6.2 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
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