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A graduated cylinder contains 110. mL of water. A 10.0 g piece of iron (density = 7.86 g/cm3) and a 18.9 g piece of lead (density = 11.3 g/cm3) are added. What is the new water level in the cylinder?
calculate the mass kg of the solute c4h8o and the volume ml of the solvent c6h6 that should be combined to generate
what is the freeenergy change for the equilibrium between hydrogen iodide hydrogen and and iodine at 453deg? i
Carboxylic acids have higher than expected boiling points due to dimeric associations involving hydrogen bonding. The structure of 3-methylbutyric acid is shown below. Draw a second molecule of 3-methylbutyric acid
Isopropyl alcohol (I.P.A.) has a flash point of 53 degrees Fahrenheit. The outside temperature is 68 degrees Fahrenheit. While this product is being unloaded from a truck
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?
What current is required to depostit, on the cathode, 5.00 g of gold/hr from a solution containing a salt of gold(III)
A titration was performed to determine the solubility product constant (Ksp) of an unknown iodide with formula . The first two steps of the reaction sequence are shown below:
If 7.50 g of the unknown compound contained 0.250 mol of C and 0.500 mol of H, how many moles of oxygen,O, were in the sample?
Name an element in the fourth period of the periodic table with a total of 4 4p electrons. Name an element in the fourth period of the periodic table with a total of 3 3d electrons Name an element in the fourth period of the periodic table with a ..
Fluorescence resonance energy transfer (FRET) is a common technique to measure distances between donor (D) and acceptor (A) fluorescent molecules
Consider the standard cell at 25C based on the following half-reactions. Pb^2+ + 2e^- --> Pb E=-0.13V Zn^2+ + 2e^- --> Zn E=-0.76V To the standard cell, OH-, is added to the zinc compartment causing precipitation of Zn(OH)2. After precipitation is..
A fixed quantity of gas at 24 C exhibits a pressure of 745 torr and occupies a volume of 4.40 L. Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.88 atm while the temperature is held constant.
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