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The solubility iof sodium chloride in water is 35.9 g NaCl/100 g of water at 25 degrees celsius. Calculate the mass percent and molality of NaCl in a saturated solution.
write the sequence of 5-oligonucleotide primers you will design to replicate the DNA sequence in question 1a by the polymerase chain reaction (PCR). Indicate the 5' and 3' ends of each primer. this is the DNA sequence
how many grams of oxygen are collected in a reaction where 231 ml of oxygen gas is collected over water at a
5000 joules of energy are added to 108 grams of silver ag at 20degc. what is the final temperature of the metal? the
the complex ion cocn6-3 absorbs a photon of wavelength 2.90times102 nm. what is the splitting energy of this
Suppose we have a flask with a movable piston in which pressure is kept constant at 1.00atm. If an 8.00gram sample of solid ammonium nitrate is introduced into the flask what is the volume of the flask in liters at 298K when the ammonium nitrate h..
Molecular orbital (MO) theory predicts the O2 +2(a +2 CHARGE) ion has a bound order of
Write equilibrium reaction for HNO 2 and compute equilibrium concentrations of all species, compute pH , OH - , and the pOH
boron has two naturally occurring isotopes 10b 19.9 and 11b 80.1. although the b2 molecule does not exist naturally on
In the Haber-Bosch Process, nitrogen and hydrogen gas are reaceted under high temperature (500 C) and pressure (200 atm) to form ammonia gas (NH3) according to the equation
a box contains a mixture of small copper spheres and small lead spheres. the total volume of both metals is measured by
If a sample of the dibrominated product was placed in a polarimeter, what would be the result
22.5ml of .383 molar h2so4 is required to completely neutralize 20ml of koh solution. what is the molarity of the koh
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