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The mass spectrum of an organic compound shows the relative abundances of M to be 58.09% and M 1 to be 15.08%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundances: 12C is 98.93% and 13C is 1.07%
When the gas is not flowing the pressure is the same everywhere in the pipe. How high above the bottom of the manometer would the mercury be in the am connected to the pipe?
The percent by mass of bicarbonate (HCO3-) in a certain Alka-Seltzer product is 32.5 %. Calculate the volume of CO2 generated at 37ºC and 1.00 atm when a person ingests a 3.29g tablet.
What is the molarity of a solution made by dissolving 74.8 g of strontium perchlorate in sufficient water
170mL of an HCl solution with pH of 2.80 is added to 200mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution
Suppose in universe Xacto matter is composed of protons, neutrons, and special matter X. For elements in a, design and draw a new periodic table that makes sense for this parallel universe.
Find the new volume of the gas sample - What is the new volume of the gas sample
nknown gas effuses in 11.0 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.56 min. What is the molar mass of the unknown gas
Discuss what you would observe after elution and visualization of a TLC plate having made the following mistakes in carrying out the anaylsis.
one of the lines in the emission spectrum of sodim has a wavelength of 590 nm. what is the frequeuncy of this line?
if you had excess chlorine how many moles of of aluminum chloride could be produced from 17 grams of aluminum
A technician would like to find the concentration of a NaOH solution using KHP as the primary standard. The reaction of NaOH and KHP is as followed:
An industrial hygiene survey has been conducted to determine whether exposure of workers to ethyl benzene (molecular weight 106) exceeded the OSHA PEL of 100 ppm.
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