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How much heat is absorbed when 28.3g H2O(s) at 0 degrees celcuis is converted to liquid at 0 degrees celcius
A proton in a linear accelerator has a de Broglie wavelength of 127 pm. what is the speed of the proton?
The following reaction is exothermic (H= -226 kJ) and has a rate law: Rate = k(NO2)^2: NO2 + CO ? NO (g) + CO2 (g) for each of the following disturbances, indicate whether the rate of the reaction will be FASTER or SLOWER and indicate whether ther..
A gaseous mixture of O2 and Kr has a density of 1.102 g/L at 420 torr and 300. K. What is the mole percent O2 in the mixture?
Explain why the in phase vibration is located at a higher frequence than the out of phase stretch in the case of acetylene.
Calculate how much heat is required to added or removed to convert 100.0 g of steam at 115 0C to liquid water at 65 0C?
What is the value of Ksp for Ag2SO4 if 5.54 g is soluble in 1.00 L of water?
Talc (used in talcum powder) has mass composition 19.2% Mg, 29.6% Si, 42.2% O,and 9.0% H.What is the empirical formula of the compound?
In a chemical reaction (unbalanced equation), AsF3 + C2Cl6 = AsCl3 + C2Cl2F4, the theoretical yield of C2Cl2F4 was calculated to be 1.86 mol. If the percent yield in the reaction was 77.2%.
A 70.6 L constant-volume cylinder containing 7.44 g Hg is heated until the pressure reaches 3.80 atm. What is the final temperature in degrees Celsius?
total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 149 g of solution. The reaction
An empty Erlenmeyer flask weighs 261.9 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 465.2 g. What is the flask's volume in cm^3?
Determine hydroxyl and hydrogen ion concentration in this solution. (if Ka for ammonium ion = 5.0 x 10^-10.)
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