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Calculate q when 28.6 g of water is heated from 22.0?C to 78.3?C. (the specific heat capacity for water = 4.184 J/(g•oC).
A. 0.385 kJ B. 1.61 kJ C. 6.74 kJ D. 9.37 kJ E. 1.61 x 10^3 kJ
Based upon the intermolecular forces present, rank the following substances according to the expected boiling point for the substance. Rank from highest to lowest boiling point. To rank items as equivalent, overlap them. HCl, NaCl, N2, H2O
A home swimming pool contains 145 m3 of water. At the beginning of the swimming season, the water must be heated from 18 to 31°C. How many joules of heat energy must be supplied?
On a TLC plate if two compounds have Rf values of .50 and .61, how far will they be separated from each other on a plate
Given N2 (g) + 3 H2 (g) ? 2 NH3 (g), which scenario will allow you to eventually reach an equilibrium mixture involving these chemicals. Place only H2 into a sealed vessel.
In hydrogen bonding does the Hydrogen have to be connected to an O, N or F in its own molecule and be bonded to a O, F or N with another hydrogen
Calculate the pH in the titration of 25.0 mL of 0.100 acetic acid by sodium hydroxide after the addition
0.0010 mg of H, 0.0116 mg of C, and 0.0310 mg of O. It was also determined that the unknown compound had a molecular weight of 90.0 g/mol.
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.95 M B(aq) with 0.95 M HCl(aq).
Calculate the freezing point and boiling point of the solution. Kf benzene = 5.12 C/m Kb = 2.53 C/m
A gas of twice the molecular weight as CO2 will pass through a small hole how much faster than CO2
The Greek mathematician Archimedes is credited with discovering how to verify the amount of pure gold in an irregularly shaped object (e.g., a crown) by placing it in water.
one mole of methane has a mass of 16.0 grams. how many grams of methane are needed to make 1.0 l of a 0.20 molar
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