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A sample has a specific heat of 0.155 cal/g·°C. How much energy will be required to raise the temperature of the sample from 20.0°C to 35.0°C if the sample has a mass of 8.0 g?
A set of two gas bulbs, with volumes of 500 mL and 300 mL, are connected by a closed stopcock. The 500 mL bulb contains 450 torr of Ne gas, and the 300 mL bulb contains 150 torr of Cl2 gas
In the reaction of meso-stilbene dibromide, KOH and triethylene glycol and heat, if the KOH has a purity of 85% and the remainder is water; why did the mixture appear to boil?
Problem- An unknown sample of phosphoric acid was determined by the method used in this experiment. the sodium hydroxide was standardized by titration of 0.133 g of oxalic acid dihydrated with 26.37 ml of sodium hydroxide. 10.00 ml of the unknown ..
A gas occupying a volume of 246 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm.
Iron (II) ions catalyze the oxidation of luminol. The intensity of the resulting chemiluminescence has been shown to increase linearly with iron (ii) concentration from 10^-10 to 10^-8 M.
cylinders of compressed gas are typically filled to a pressure of 200 bar. for oxygen, what would be the molar volume at this pressure and 25 degrees Celsius based on the van der waals equation
A second student pours this volume into a graduated cylinder with divisions of 1 mL and reports the volume to be 72.2 mL. Are these two measurements consistent or contradictory
Use Coulomb's law to calculate the ionization energy in kJ/ mol of an atom composed of a proton and an electron separated by 278.00 pm . Part 2, What wavelength of light would have sufficient energy to ionize the atom
Problem- How much heat (in kj) is required to warm 10.0 g of ice, initially at -10.0 degrees Celsius to steam at 110.0 degrees Celsius? The heat capacity of ice is 2.09 J/g Celsius and of steam is 2.01 J/g Celsius
A potiential measurement in a paddy field acquiesce a reading of -278 mV verses the standard calomel reference electrode. Explain what is the pE value for this soil
Determine the vapor P lowering, freezing point depression, boiling point elevation, and osmotic pressure when the sample is dissolved in 10.0 g water
A student takes 148. g of BaCl2, and reacts it according to the following equation: 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?
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