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Working with ideal gas lawThe pressure of a sample of gas at a constant temperature of 25 degrees C is increased from 1.0atm to 1.3atm. If the original volume was 3.8 liters, what will the new volume (in liters) be?
determine how many grams of CaH 2 are required to generate 145 Litres of hydrogen gas if the pressure of hydrogen is 825 mm Hg at temperature of twenty one degree Celsius? .
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
H2C2O4(aq), Ka1 = 6.5 x 10-2 and Ka2 = 6.1 x 10-5. Don't forget that Kw = 1 x 10-14. Then Determine K for the reaction
What is the pH of a buffer solution if 100.0 mL of the solution is 0.15 M with respect to acetic acid and contains 1.56 g of sodium acetate, CH3COONa.
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?
How much heat (in kJ) is evolved in converting 1.20 mol of steam at 134.0°C to ice at -55.0°C.
replacement compounds for the Freons have gone into production: HFC-134a (chemical formula: CH 2 FCF 3 ) and HCFC-124 (formula:CHClFCF 3 ) In 1991. Determine the molar masses of these two compounds
Sodium methoxide CH3ONa is a weaker base than BuLi or nBuLi butyllithium. Recommend an explanation why it is not surprising to find that a weaker base is sufficient to prepare the Horner-Emmons-Wittig reagent.
For a gas sample of N molecules that consists of N1 molecules of mass m1 and N2 molecules of mass m2, follow through a derivation which led to the result PV=1/3mv2 and PV = nRT.
Determine what is the percent yield of the reaction If 15.0 grams of Nitrogen and 2.00 grams Hydrogen react to produce 1.38 grams of Ammonia?
How many grams of diphenyl (C 12H10) must be dissolved in 655 g of benzene to lower the freezing point by 3 .20ºC.
calculate the activation energy for a reaction if its rate constant increases from 10 to 45 s as the temperature increases from 298 to 315 k .
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