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Methane (CH4), ammonia (NH3), and water (H2O) all have octets around the central atom, yet they have different shapes and bond angles. What are the shapes and bond angles of each of these molecules? Explain why they have different bond angles.
Describe the major absorption bands in the IR spectrum - indicate the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
Find molarity, molality, percentage composition, boiling and freezing point of a solution - What are the boiling and freezing points of the solution?
Na2CO3(s) (sodium carbonate) can be prepared by heating NaHCO3(s) (sodium bicarbonate). If a sample of NaHCO3 is placed in an evacuated flask and allowed to achieve equilibrium with the products which are formed at 100ºC, what will the total gas p..
Exact potential difference in the concentration cell, What will be the exact potential difference in the following concentration cells?
Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 1.805 g sample of one such additive containing only lead, carbon, and hydrogen was burned in an oxygen rich environment.
How many moles of steam are produced at 2.00 atm and 202.0 degrees celcius by the complete combustion of 12.50 L of methane gas?
Calculate the molar mass of a gas that has a density of 0.232 g/L at 156 oC and 222 torr. Use R = 0.0821 L-atm/mol-K for the value of the gas constant.
The compounds below cannot be identifed from IR and H NMR spectra alone. Explain. Suggest how other types of spectroscopy might be useful in solving the structure
When a sample of neon with a volume of 628 mL and a pressure
Constant external pressure of3.00 atm, followed by2) against a constant external pressure of 2.00 atm. Calculate q and w. (101.33 J = 1 L atm)
Show two different ways to make methyl propionate, using methanol, propionic acid and other necessary reagents The methanol and propionic acid do not have to both be used in the first step.
Complete and balance the following redox reaction under acidic conditions: Fe2+(aq) + MnO4-(aq)---------------> Fe3+(aq) + Mn2+(aq)
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