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Concentrated sulfuric acid has a density of 1.84 g/cm3 and is 95% by weight H2SO4. What are the molarity and the molality of the solution?
starting with 1-pentanoic acid and using any other required reagents outline a synthesis for 1-penten-2-ol
how many atoms of hydrogen are contained in 35 molecules are butric acid?
What is the frequency of the photons emitted by hydrogen atoms when they undergo transitions from n=5 to n=3.
A balloon containing 34.5 L of a gas at room temperature (25.0 oC) is heated to 73.5 oC. What is the volume of the balloon at this new temperature?
Using Le Chateleir's principle, explain the effect on teh cell potential of decreasing the Fe2+ ion concentration from 1.0M to 0.1M for each of the following reactions. The concentration of the other solution remains at 1.0M.
What is the normality formula. What is the normality of: a) 0.45M Al(OH)3 b) 0.122M H2SO4 c) 0.675M H3PO4
A rechargeable battery is constructed based on a concentration cell constructed of two half-cells. The volume of each half-cell is 2.1 and the concentrations of in the half-cells are 1.30 and 1.2×10?3.
The decomposition of hydrogen peroxide can be catalyzed by iodide ion. The catalyzed reaction is thought to proceed by a two step mechanism.
A solution containing 29.95 mg of an unknown protein per 29.0 ml solution was found to have an osmotic pressure of 3.30 torr at 32 degrees C. What is the molar mass of the protein?
Physical propoerties and intermolecular forces, What type of intermolecular forces accounts for the following differences in each case?
If 3.140g of ethanol is burned completely in a bomb calorimeter at 298.15 K, the heat produced is 92.82kJ. 1) Calculate delta H_combustion for ethanol at 298.15 K. 2) Calculate delta H_f for ethanol at 298.15 K.
Potassium nitrate has a lattice energy of -163.8 kcal/mo land a heat of hydration of -155.5 kcal/ mol. How much potassium nitrate has to dissolve in water to absorb
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