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The 20mL of water added to the Erlenmeyer flask is to be previously boiled, deionized water. Since water does absorb CO2 from the atmosphere and since CO2 dissolved in water causes it to be slightly acidic, will the use of deionized water that has not been previously boiled cause the mass of acetic acid in the vinegar to be calculated as too high or too low. Explain.
consider the following reaction3caco3 2fepo4 ca3po42 fe2co33a which of the following reagents is the limiting
In a chemical reaction (unbalanced equation), AsF3 + C2Cl6 -> AsCl3 + C2Cl2F4, the theoretical yield of C2Cl2F4 was calculated to be 1.86 mol. If the percent yield in the reaction was 77.2%,
Addition of silver nitrate solution results in a precipitate. Assuming that the heat capacity of the solution is the same as pure water, use enthalpies of solution and solubility rules to identify the salt.
What is the basic structure of phosphatidyl cholines and how do they work as emulsifiers? Why is there so much research interest in phosphatidyl cholines and similar compounds in heart research?
Draw the lawis structure and structural formulas for CCl3F. Sketch the space-filing model and the charge-density model for this molecule.
AgCl has a 78.1% ionic character and a diplole moment of 11.5D. what is the distance between the Ag and Cl atoms?
Chemicals available for extractions: CH2CL2, 1M NaOH, 1M HCL and sodium sulfate for drying
all oxygen gas from a 10.0-L container at a pressure of 202 kPa is added to a 20.0-L container of hydrogen at a pressure of 505 kPa. after the transfer, what are the partial pressures of oxygen and hydrogen?
an adult person radiates heat to the surroundings at about the same time as a 100-watt lightbulb. what is the total amount of energy in kcal radiated to the surroundings by an adult in 24 hrs?
What molarity of aqueous sodium chloride solution can be expected to show the same conductivity as 0.0050 M aluminum sulfate at 12,500 units.
An FM station broadcasts classical music at 89.1 MHz (megahertz, or 106 Hz). Find the wavelength (in m, nm, and A) of these radio waves. m nm A
How much heat energy, in kilojoules, is required to convert 74.0 g of ice at -18.0 C to water at 25.0 C ?
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