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A typical deposit of cholesterol, C27H46O, in an artery has a mass of 3.90 mg. How many molecules of cholesterol are present in this deposit?
A 200.0-mL sample of the same tap water required 47.86 mL of the standard EDTA for titration at pH 10 using calmagite indicator. Calculate the molar concentration of Mg2+ in the tap water.
indicate whether the process is always spontaneous, never spontaneous, spontaneous at high temperature or spontaneous at low temperature.
Sodium peroxide used to remove carbon dioxide from the air supply in space crafts. it works by reacting with the co2 in the air to produce sodium carbonate and O2.
propane, C3H8, is common fuel used for cooking and home heating. What mass of O2 is consumed in the combustion of 1.00g of propane. I am having a hard time getting the balanced equation for this to solve the rest
If the total pressure is 1.8 atm, what is the partial pressure of ethanol?
What is w when a gas is compressed from 38.3 L to 28.8 L using a constant external pressure of 745 mmHg
How many molecules are in 22.41 L of an ideal gas at STP? Remember the answer is supposed to be in molecules
how many grams of water can be cooled from 45 c to 23 c by the evaporation of 63 of water? the heat of vaporization of
looking for a good introduction for this lab and any random data showing the results on how to calculate the equilibrium constant for the reaction shown above.
What pH will would measure for these solutions immediately. What would be the pH after the solutions equilibrate with the atmosphere
The following reactions take place in the reactor: 2 C2H6 + O2 ------> 2 C2H5OH 2 C2H5OH + O2 ------> 2 CH3CHO + 2 H2O 2 CH3CHO + O2 ------> 2 CH3COOH The oxygen conversion is 82.0%, and the concentration of the ethanol in the product stream is th..
Bombardment of boron-10 with a neutron produces a hydrogen-1 atom and another nuclide. What is this nuclide
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