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The GC/MS analysis of the compound gave one major compound. The base peak in the mass spectrum had a m/z value of 43. Identify the base peak and determine if it is consistent with 4-methyl-2-pentanone or 4-methylpentanal.
helium gas at 25 oc filled a balloon to a volume of 2.25 l. what would the volume of this balloon be when cooled at
Considering the given equation 2 C8H18 + 25 O2 --> 16 CO2 + 18 H2O in which The combustion of octane produces carbon dioxide and water , determine the mass of water.
Suppose that ethylene is to be supplied to the reaction chamber at the rate of 100 L per minute at 300 degrees Celsius and 7.00 x 103 kPa. AT what rate in moles per minute is ethylene being supplied to the reaction chamber?
When M2S3(s) is heated in air, it is converted to MO2(s). A 4.500-g sample of M2S3(s) shows a decrease in mass of 0.209 g when it is heated in air. What is the average atomic mass of M.
Use the Henderson-Hasselbalch equation to calculate the pH of a solution that is 14.5 g of HF and 23.0 g of NaF in 125 mL of solution.
The organic chemical butane (C4H10) will undergo reversible rearrangement to form isobutene (C4H10) with Kc = 2.5 under certain reaction conditions
What net ionic equations for the precipitation reaction or reactions that occur. What are the spectator ions in the solution
insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. a bottle contains 475
The mass spectrum of an organic compound shows the relative abundance of M to be 34.29% and M+1 to be 8.901%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundance: 12C is 98..
The nitrogen in a 4-tablet sample that weighed a total of 7.50 g was converted to ammonia by Kjeldahl digestion, followed by distillation into 100.0 mL of 0.1750 M HCl. The analysis was completed by titrating the excess acid with 11.37 mL of 0.108..
The atmosphere becomes colder at higher elevation. As an average the standard atmospheric absolute temperature can be expressed as Tatm = 288 - 6.5 × 10?3 z, where z is the elevation in meters.
Polonium crystals have a simple cubic unit cell. If the edge length of a unit cell is 310. pm, what is the radius a polonium atom
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