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Find out the molecular mass and its uncertainty for C3H7OH. Note Pay attention to significant figures and use the atomic masses given in the table to the right. Be sure to round the molar mass therefore that the last significant figure is the first digit of uncertainty.)
H= 1.00794 ±7
C= 12.0107 ±8
O= 15.9994 ±3
A buffer is made by dissolving HC2H3O2 and NaC2H3O2 in water. Write an equation that shows how this buffer neutralizes added: Acid, Base
a 1L flask contained 2g N2, 0.4g H2 and 9g O2 at 27c. what is the total pressure in the flask?
Explain when 13.2 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of water, the vapor pressure of the solvent decreased from 23.8torr to 23.2torr at 298 K. Compute the molar mass of the solute, X.
PI3Br2 is a non-polar molecule. Founded on this information, find out the I-P-I bond angle, the Br-P-Br bond angle, and the I-P-Br bond angle.
A solution of ammonia and water contains 1.30×10^25 water molecules and 7.70×10^24 ammonia molecules. How many total hydrogen atoms are in this solution?
draw all possible contributing structures to the carbocation intermediate in the bromination of phenol. why would the
Calculate the pressure and the temperature of the compressed gas. In a diesel engine the compression ratios are typically much higher; redo the same calculation for the compression ratio of 20:1.
A weather balloon has a volume of 750 L when filled with helium at 8 degrees C at a pressure of 380 torr. What is the new volume of the balloon, where the pressure is 0.20 atm and the temperature is -45 degrees Celsius
We are now processing magnesium fluoride from a mine in Elko. It can be used to coat binocular lenses. The Ksp for magnesium fluoride is 3.7 x 10^-8 at room temperature. Determine how many grams of magnesium fluoride is precipitated out if we plac..
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.
the running engine of an automobile produces carbon monoxide at the rate og 188 g co per hour.a car is left idling at
Describe in detail the manufacture of silicon crystals. Describe the process
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