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Reffering to the structure of estrone, a female sex hormone. What is the number of carbon atoms in estrone that are sp2 hybridized?
Usually t-butanol absorbs water on exposure to the air. If the freezing point of a 10.0 g sample of t-butanol is measured as 24.59 degrees C, how many grams of water are present in the sample
a graduated cylinder contains 10.0ml of water. if the volume of a single water molecule is 2.99 x 10e-23 cm e3 how many
A polluted water sample is suspected of being contaminated with one of the following; soap, ABS Surfactant, or LAS. In soft water, the sample has a very high BOD relative to its TOC.
if molarity of a 2000ml solution is 4.0M NaCl, how many moles of NaCl are dissolved in that solution.
A sample of steam with a mass of 0.552 g and at a temperature of 100 degrees C condenses into an insulated container holding 4.50 g of water at 6.0 degrees C. Assuming that no heat is lost to the surroundings, what will be the final temperature of ..
A solution of ammonia and water contains 2.70×1025 water molecules and 8.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution. Enter your answer numerically.
a balloon is filled with a gas. the baloons volume is 2.1 l and the gas pressure is 1.7 atm. then the balloon is placed
nonionic solute in 50.0g of water. The solution freezes at -0.1455 degrees C. what is the molar mass of the solute?
Draw a structure consistent with the following set of data: a hydrocarbon with a molecular ion at m/z = 68 and an IR absorptions at 3310
For a solution of 0.10M H3PO4, calculate the concentration of all the ionic species in solution (i.e., H+, OH-, H2PO4-, HPO42-, PO43-)
27.5 grams of hydrogen chloride is dissolved into 70.0 ml of water. Calculate the mole fraction for the hydrogen chloride that is dissolved in the water.
Metallic iron can be made by the electrolysis of molten Fe2O3. How many minutes are needed to plate out 14.00 g of Fe from molten Fe2O3 using 6.42 A current
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