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How many mL of 1.183 M H2SO4 must be added to 18.22 mL of 0.531 M NaOH to just completely react all of the NaOH according to the equation H2SO4+2 NaOHà 2 H2O + Na2SO4.
A gas cylinder that contains argon has an internal volume of 6.88 L. A pressure gauge attached to the cylinder reads 1870 psi (1 atm = 14.7psi) at 20.0C.
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 82% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9*10-12.]
how many grams of gold would plate on the metal used for the medallion? Explain what you are thinking as you show your calculations.
Persistent Organic Pollutanants- Bioaccumulation Measurements, Compare the worst case scenario, i.e. the strongest tendency to bioaccumulation for each toxin.
aluminum has the mass of 8.37g. when it is placed in a graduated cylinder containing 20.0mL of water, the water level rose 23.1mL. calculate the density and specific gravitas of the object.
At constant pressure, in which of the reactions is work done by the system on the surroundings? By the surroundings on the system? In which of them is no work done?
A buffer solution is prepared by mixing 47.5 mL of 0.772 M carbonic acid with 58.8 mL of 0.0346 M sodium hydrogen carbonate. 1. Calculate the pH (to two decimal places) of this solution. Assume the 5% approximation is valid and that the volumes are a..
a proton in a linear accelerator has a broglie wavelength of 128 pm. what is the speed of the proton?
The standard cell potential of the zinc-air battery is 1.65V. If at 25 dgrees celsius the partial pressure of oxygen in the air diffusing through its cathode is 0.21 atm.
If 56.4 mL of BaCl2 solution is needed to precipitate all the sulfate ion in a 748 mg sample of Na2SO4, what is the molarity of the solution?
Write the balanced equation for the decomposition of one mole of NH4CO2NH2. b) Calculate K at 313 K.
What is the percent by mass of sulfur trioxide (SO3) if oleum is expressed as 3H2SO4 . 5SO3?
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