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Calculate the molar solubility of AgCl in a solution made by dissolving 10.0 g of CaCl2 in 1.50 L of solution.
How do old dispersive infrared (IR) instruments use a grating to separate the infrared source by wavelength before passing through the sample?
A student calibrates his/her calorimeter. S/he performs part 1 as instructed. The data are: 99.4 g water at 36.0°C are added to 98.0 g water in the calorimeter at 16.0°C.
The total molarity of acid and conjugate base = 0.100M. A boy adds 4.20 milliliters of a 0.370 M solution to the beaker. Determine how much will the pH change?
Phosphorous trichloride (PCl3) is produced from the reaction of white phosphorous (P4) and chlorine: P4(s) + 6 Cl2(g) → 4 PCl3(g) . A sample of PCl3 of mass 298 g was collected from the reaction of 75.37 g of P4 with excess chlorine.
an ideal gas initally at 600 K and 10 bar undergoes a four step mechanically reversible cycle in a closed system. In step 1-2, pressure decreases isothermally
A thermometer indicates that water freezes at 0.5 degrees Celsius and boils at 100.2 degrees Celsius at a barometric pressure of 760 torr. The observed freezing point of an unknown liquid is -1.3 degrees Celsius.
what mixing proportion is required for lime stone with 91% CaCO3, and clay with 31% CaCO3 to get a raw mix with a CaCO3 content of 76%.
Compute the number of mL of 2.00M H2SO4 required neutralizing 125.5mL of 1.2M KOH
The specific heat of fat is 0.45 cal/(g C) and the density of fat is 0.94g/cm^3 . How much energy (in calories) is needed to heat 10cm^3 of fat from room temperature (25 C) to its melting point (35 C).
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
calculate delta G foor the combustion of ethane: 2C2H6(g) + 7O2(g) = 4CO2(g) + 6H2O(l)
A 2 mL solution containing 1.40 uCi/mL is injected into the blood stream of a patient. After dilution, a 1 mL sample is withdrawn and found to have an activity of 2.9 * 10-4uCi. Calculate the blood volume,
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