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Question- What volume (L) of the solvent tetrahydrofuran should be added to 0.358 L of the solute diethyl ether to prepare a solution that contains 7.60 % by mass (C2H5)2O.
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Which reactant is in excess from the reaction of 35.0 g of hydrogen with 276 g of oxygen to form water
Suppose that ammonia (a monoprotic base), applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water. If the pH of this pond is found to be 9.81.
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Calculate the Ksp for Na2B4O5(OH)4 from this data. What is the free energy change for the dissolution of Na2B4O5(OH)4 at 25° C
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It is produced natrually from degradation of organic matter, and also anthropogenically from fuel combustion.) The acid dissociation constant, Ka for formic acid is 10-3.7. Assume T=4*C and I=0.
Calcium reacts with oxygen to make calcium oxide, CaO. Explain what is the maximum mass of CaO(s) in grams that could be prepared from 21.86 g of Ca(s) as well as 11.27 g of O2(g)
a calorimeter consists of metal parts with a heat capacity of 850.0 j k-1 and 1100 g of oil with a specific heat of
In Horner-Wadsworth-Emmons reaction, a 1,2-disubstituted alkene was produced in which the olefinic protons exhibited at vicinal coupling of 9.0 Hz in the 1H NMR. What is the stoichiometry of the double bond.
An odorous gas emitted by a hot spring was found to diffuse 2.92 times slower than helium. What is the molar mass of the emitted gas.
The general molecular formula for alkanes is Cn H2n+2. Explain what is the general molecular formula for cycloalkanes
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