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The titration of 25.0 mL of an iron(II) solution required 18.0 mL of a 0.265 M solution of dichromate to reach the equivalence point. What is the molarity of the iron(II) solution?
NaOH is added to K2CrO4 and K2Cr2O7 separately in test tubes and a color change is noted.
determine the expression for the rate of the reation in terms of the change in concetration of each of the reatants and products.
If a wheelchair-marathon racer moving at 13.3 miles per hour expends energy at a rate of 635 Calories per hour, how much energy in Calories would be required to complete a marathon race (26.2 miles) at this pace
What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.288 M Al(NO3)3 is added to 200.0 mL of 0.159 M KOH
The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. What fraction of the tritium initially in a sample is still present 30 years later?
A .25-mole quantity of CuSO4 is added to a liter of 1.0 M NH3 solution. What is the concentration of Cu2+ at equilibrium. [The formation constant for Cu(NH3)4 is Kf=5.0e13]
if 600 j of heat are added to 50 g of water initially at 20 degrees c.how much energy is this in calories?what is the
An ideal gas undergoes an expansion between 400K to 300K. However the path is chaotic, that is, not adiabatic, reversible, isothermal, at constant volume or pressure. Is the work positive, negative, zero, or not enough information and why?
Over the time interval 300 to 400 seconds, the rate of reaction with respect to A is delta[A]/delta t =3.7 x 10^-5M/s. Over the same time interval what is the rate of reaction with respect to B,
Chlorine gas (Cl2) is bubbled into an absorption column containing hot sodium hydroxide (NaOH) solution in order to produce sodium chlorate (NaClO3) according to the following chemical equation
what are the concentrations of [NAD+] and [NADH] in the cells? Under oxidative stress condition, the cellular redox potential is shifted to -290 mV. What will be the concentrations of [NAD+] and [NADH] in this cell under this oxidative stress cond..
Explain how much salt in grams would need to be added to 1.84L of water to increase the boiling point by 4.36 °C? Utilize 1.00 g/mL for density of water.
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