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When studying for the HESI exam, the nursing school entry exam, I'm having an issue with the chemistry section as it's the only class I did not take at any point during my 2 year degree. Any suggestions for learning basic chemistry, QUICKLY.
Calculate the mass of propylene glycol that must be added to 0.500 kg of water to reduce the vapor pressure by 4.60 torr at 40 degrees celcius.
This is question is about the Purification Via Chromatography lab: 1.) Briefly discuss the interactions involved in a TLC plate (silica gell and solvent system; adsorption versus solubility). How does variation in polarity of a solvent system affe..
Write the formula for a complex formed between Al3 and 2-2\'-bipyridine (C10H8N2), with a coordination number of 6.
At a certain temperature, the ph of a neutral solution is 7.73. What is the value of Kw at that temperature
1. Information assurance is critical for businesses. Determine whether or not businesses could benefit from applying CNSSI-4009 guidelines to define internal policies and procedures. Explain why or why not. 2. Provide five advantages and five disadva..
WHAT IS THE OSMOTIC PRESSURE OF A SOLUTION CONSISTING OF 10.0 g OF A NON-ELECTROLYTE SOLUTE WITH MOLAR MASS OF 50.0 g DISSOLVED IN SUFFICIENT WATER TO MAKE 400.0 mL OF SOLUTION AT 270C?
Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes
During photosynthesis chlorophyll a absorbs light of 440 nm and emits light of 670 nm.
What is the concentration of the solution as a mass percentage?
a group of students brought a six pack of beer to thebeach in fortlauderdale fl. the six pack is placed in a
The boiling point of pure CS2 is 46.30 oC, and its boiling point elevation constant Kb is 2.34 oC/m. A solution of sulfur in liquid CS2, which was prepared by dissolving 2.26 g S in 50.0 g CS2, boils at 46.71oC. What is the molecular formula of th..
Calculate the speed of orbit of electron in m/s
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