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Which of the following describe chemical properties? Check all that apply.
- Iodine (a purple solid) becomes a purple gas.
- Titanium is less dense that iron .
- Water freezes at 0'C
- Sugar burns in air to form water and carbon dioxide.
what effect will that have on the delta T values when the initial value is measured with the thermometer and the latter is measured with the temperature probe? How will this affect the calculated change in heat of that substance?
Sodium-24 is used to treat leukemia and has a half-life of 15 hours. A patient is injected with a salt solution containing sodium-24. What percentage of the 24Na remained after 48 hours
calculate the molecular weight of urea 180 grams of whichdissolve in 1500 grams of water to produce a solution having
If the pressure of a gas is 61.49 atm in a piston, what is the pressure, in atm, if the volume of the piston is increased by a factor of 4 at constant temperature
The following questions pertain to the magnitude of the x-component of the speed(absolute value of the velocity) cx=|vx| of atoms in a gas, whose probability distriubution has the form P(cx)= ae^-bc2/x.
Using heat of fusion, specific heat of water, and/or heat of vaporization, calculate the amount of heat energy in each of the following. calories to condense 135 g of steam at 100^{circ}{rm C} and to cool the liquid to 15^{circ}{rm C} (two steps)
The reaction of sodium hydroxide with sulfuric acid in water is given by the following equation
The mass of a helium atom is 4.0026amu, and its average velocity at 25°C is say, using your GU-ID (Example G000abcde, yours for this problem is GU-ID G00071922, a.bcX 10^3m/s.
isothermally against a constant external pressure of 2.85 atm from 3.12 L to 11.85 L. Calculate the values of q, w, delta H, delta S system, delta S surroundings, delta S universe and delta G.
in new york you had a balloon inflated with helium he and you measured its temperature which was 89.6 degree f and its
to determine the solubility productconstant ksp at 50oc forniio32 a chemist prepares a saturated solution of the salt
Calculate the standard entropy change for the reaction 2Na(s) + Cl2 (g) --> 2NaCl (s) using the data from the following table: Substance Change in h Change in G S degrees 0.00 0.00 51.30 0.00 0.00 223.1 -411.0 -384.0 72.10
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