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Problem- A piece of wood containing moisture weighs 210 grams and after oven drying to a constant weight, it weighs 125 grams. What is the percent moisture content?
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the method of initial rates involves substituting the initial reactant concentrations into rate calculations. when you
which statement best describes the attraction present in metallic bonding?a.the attraction between nuclei and
Evaluate the root square velocities of N2 and H2 molecules at 279 Kelvin also 599 Kelvin.
1.60 M solution(78.0 mL ) is diluted to a volume of 278 mL and a 139-mL portion of that solution is diluted using 175 mL of H 2 O ,water determine the final concentration?
If the fluid inside a tree is about 0.3 M more concentrated in solute than the groundwater that bathes the roots, how high will a column of fluid rise in the tree at 24°C. Assume that the density of the fluid is 1.0 g/cm3. (The density of mercury ..
A fluorinated organic gas in a cylinder is com- pressed from an initial volume of 960 mL at 158 Pa to 478 mL at the same temperature. What is the final pressure? Answer in units of Pa.
the velocity of flow toward the sphere along the longitudinal axis is found to be u=-U0(1-r0^3/x^2) where r0 is the radius of the sphere and x is the distance from its center. determine the acceleration of an air particle on the x-axis upstream of..
a solution of ammonia and water contains 1.10times1025 water molecules and 5.00times1024 ammonia molecules. how many
Isotopes of elements are atoms of the same element that vary in the: 1,number of electrons associated with the nucleus. 2,number of neutrons in the nucleus. 3,number of atoms in a molecule. 4,number of protons in the nucleus.
What volume of ethylene glycol, C2H6O2, a nonelectrolyte, must be added to 15.0 L of water to produce an antifreeze solution with a freezing point of -30*C? What is the boiling point of the solution?
Calculate the following for an oil (MW=169g/mol) that distills during steam distillation at a boiling temperature of 98°C at 1atm of pressure. A) The mass of the oil that codistills with each one gram of water at 98°C
In the Macy's Thanksgiving Day parade, 2000, there was a new float, the Cheerios' bee, and Buzz bee. The jar of honey it was holding contained 36,763 L of helium.
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