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Next, the student added 5.2 mL of an unknown liquid to the dry 250-mL Erlenmeyer flask (same flask used in Question 1). He placed the flask in a boiling water bath and left it there until the liquid completely vaporized. The student measured the temperature of the boiling water bath to determine the temperature of the gas inside the flask. The temperature of the water bath was 99.3 degrees Celsius. Atmospheric pressure was 751 torr when the liquid completely vaporized. What is the temperature of the gas in Kelvins?
Problem- 25.00g of a salt with molar mass 175.00g/mol is dissolved in 385g of acetic acid. The boiling point of the solution is 119.5oC. The boiling point of pure acetic acid is 118.1oC and kb (acetic acid)=3.07oC/m. What is the vant Hoff factor(i..
An organic compound has a molecular weight of 176.12 amu and was found to contain only three elements, C, H and O. When a 1.0000 g sample was completely combusted in air
Copper crystallizes in a face-centered cubic lattice. What is the mass of one unit cell. Report your answer in grams.
a sample of h20 with a mass of 46.0 grams has a temperature of -58.0 degrees ceslius. how many joules of energy are
A sample of .755g of NaHCO3 was dissolved in 25mL of .960 M HCl. After heating, 6.7 mL of .601 M NaOH was needed to neutralize the excess acid that was not neautralized
As pH increases, hydronium ion concentration increases. As pH increases, hydroxide ion concentration increases
Identify the bonding pairs and lone pairs in the Lewis electron-dot formula of I3- ion - Predict the electron arrangement and the shape or geometry of the I3- ion using the VSEPR model. Draw the VSEPR sketch
Methyl salicylate is an ester and can be prepared from salicylic acid and methyl alcohol by the same method
Assume water boils at 100.0 C in Houston(near sea level) and at 90.0 C in Cripple Creek Colorado(near 9, 500 feet). If it takes 4.7 min to cook an egg in Cripple Creek and 4.4 min in Houston, what is Ea for this process? Enter your answer in scientif..
a quantity of electricity equal to 9.263 x 104 c passes through a galvanic cell that has an nis anode. compute the
The resulting mixture exerts a pressure of 731 mmHg at 83°C. (a) What is the partial pressure of each gas in the container (in mmHg). (b) What is the mass of the original sample (in g)
Gold has a face-centered cubic arrangement with a unit cell edge length of 4.08 . How many moles of gold fit in a sheet with a length of 72.3 , a width of 26.9 , and a thickness of 12.2
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