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4.75 grams of NaOH are added to 25.0 ml of water in a volumetric flask. 10.0 ml of resulting solution are removed as well as diluted to a final volume of 100.0 ml. Explain what is the concentration of NaOH in the final solution?
If acid rain causes the pH of a lake to decrese by 0.010, the [H+] concentration that lake will increase by
What are advantages of Attenuated Total Reflectance (ATR) sampling in IR over Beam Through Sample sampling. What region of an IR Spectrum (give a range in wavenumbers) is most useful for distinguising between isomers that contain the same functiona..
Explain the development of the modern periodic table. Comprise contributions made by Lavoisier, Newlands, Mendeleev, and Moseley.
When anisole is nitrated with nitric acid/sulfuric acid, what product or product mixture is formed?
Given a vapor pressure of toluene of 21 mm Hg, at 760 mm Hg, what is the equilibrium concentration for toluene
Determine how many moles of gas were added to the container If the pressure raised to 800. torr,?
The calorimeter cup had several millimeters of water in it when you added the HCl in Step 16: b.) The base solution was added to the acid solution but was not stirred while temperature measurement were not made: c.) Some of the base splashed out o..
Draw a valence bond structure for the BH3-THF complex showing formal charges
If 3.93 g of sodium borohydride contains 2.5 × 10^23 H atoms, how many moles of H are present in 36 cm^3 of sodium borohydride (of density 1.074 g/cm^3)? Answer in units of mol
When atoms of the hypothetical element X are placed together, they rapidly undergo reaction to form the X2 molecule: Would you predict that this reaction is exothermic or endothermic. Explain.
calculate the moles of solute needed to prepare each of the following 3.5l of a 1.4m cacl2 solution 4.5l of a 0.10m
2.50 mol NOCl was placed in a 2.50 L reaction vessel at 400deg C. after equilibrium was established, it was found that 28 percent of the NOCl had dissociated according to the equation
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