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Saturated solutions are often prepared by bubbling a gas through water. At 298 K and 1 atm, SO2 is bubbled through H2O to form a saturated solution. A 10 mL sample of the solution is reacted with potassium iodate and the I2 formed is then reacted completely with 65.6 mL of a 0.10 molar solution of Na2SO3, Calculate moles of iodine produced.
An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gases called air. If the flask volume is 4.00 L, and the air is at standard temperature and pressure,
a flask contains 30mL of 0.16 M phosphate buffer that has a pH of 7.1. what volume of 0.06M NaOH should be added to increase
What is the source of the energy needed to incorporate glucose residues into glycogen. How is it used
A sample of Nitrogen gas occupies 1.55L at 27.0 degrees C and 1.00 atm. What will the volume be at -100.0 degrees C and the same pressure?
which of the following exhibits dipole-dipole intermolecular forces: HBr, NBr3, SBr2, CBr4?
a piece of paper is spotted with a solution containing a mixture of 2 components, A and B. the chemical affinity of A for the stationary phase is less than that of B, and the chemical affinity of A for the mobile phase is greater than a of B.
The decomposition of Phosphine, PH3(g), to P4 (g) and H2 is first order with rate constant of 1.1 min-1. How long will it take to decompose one fifth of the Phosphine
On the obtained mass-spectra you got in the expected parent-ion mass region two adjacent lines with almost the same abundance
If the pH of a human patient's body fluids fell outside of the pH range determined in Discussion Question 5, what would happen to the cells?
an unknown element forms a yellow ion xo . it forms a precipitate with silver ions. if 48.0 ml of a 0.250 moll solution
A chemist prepares a sample of hydrogen bromide and finds that it occupies 258 mL at 60 degrees celsisus and 476 Torr. What volume would it occupy at 0 degrees celsisus at the same pressure? Answer in units of mL to 5 decimal places.
A student carried out several different determinations of the density of the metal ruthenium. The students results were as follows
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