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Question: The initial concentration of a reactant in the first order is .28M. The rate constant for the reaction is.75s^-1. What is the concentration of the reactant after 1.85s?
The osmotic pressure of the solution is 1.21 atm at 27 °C. What is the molar mass of the solute?
of an apparatus that could be used to electroplate a ton spoon with Ag. Label the anode and cathode, suggest an electrolyte, and write the anode and cathode half reactions. explain how the process takes place.
you have two flasks of equal volume. Flask A contains H2 at 0 degree celsius and 1 atm pressure. Flask B contains CO2 gas at 25 degree celsuis and 2 atm pressure. Compare these two gases with respect to each of the following:
Qualitative Approach: How is the solubility of CaF2 in water different from its solubility in Ca(NO3)2? Is CAF2 more or less soluble in water than Ca(NO3)2?
A beaker with 1.90×10 2 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100.
What is the smallest possible integer coefficient of S in the combined balanced equation and compute the final pressure in the tank if nothing else is altered in the surroundings.
Ozone is an air pollutant produced when nitrogen dioxide, NO2 , from automobile exhaust reactswith oxygen. The chemical equation for this reaction is NO2(g) + o2(g) ---> NO(g) + O3(g).
A sample of oxide of antimony (Sb) contains 30.5g of antimony combined w/10g O2. What's the simplest formula for the oxide
what is the enthapy change needed to heat 1 kg of water at 0.4 MPa and 4°C to steam at 150°C and 0.4 MPa? b/ Does a state change from saturated vapor at 230°C to the state 100°C and 0.05 MPa represent an enthalpy increase or decrease?
Calculate the change in pH when 7.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Using the original buffer solution,
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 0.061 M NaOH.
What is the pH of the solution after the addition of 80.0 mL of 0.0500 M NaOH(aq) to the buffer. What is the pH of the solution after the addition of 10.0 mL of 1.0 M HNO3(aq) to the initial buffer
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