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The drops in temperature is measured by 113 degreed Celsius when a 55 g sample of a certain metal and it loses heat of 837 cal . calculate what is the specific heat of the metal?
Determine what will be the major product expected from chronological treatment of propylbenzene with 1) KMnO4, 2) 3)H3O+, Cl2 and FeCl3, and iv) Br2 and FeBr3?
Assuming that a chemical reactions doubles in rate for each 10 C Temperature increase, by what factor would the rate increase
Using tabulated data, and the fact that the boiling point of mercury is 337.7C, calculate S for mercury vapor.
In a combustion experiment, .73g of an unknown hydrocarbon was burned in the presence of excess oxygen. This reaction produced .452 g CO2 and .087 g H2O. How many moles of carbon were in the original hydrocarbon sample
How many moles of CO2 will be produced if 3.119 g of O2 are reacted completely?
Draw a flow chart showing the procedure and the observations to be expected at each step with each of the possible cations.
At 63.5oC the vapor pressure of water is 175 torr and that of ethanol (C2H5OH) is 400 torr. A solution is made by mixing equal masses of water and ethanol.
Starting with 0.86 moles of HF, calculate the number of moles of H2O that is produced by this balanced reaction.
How many milliliters of 4.21 M NaOH are needed to completely neutralize 76.9 mL of 0.340 M H3PO4? The reaction is 3NaOH(aq) + H3PO4(aq) → Na3PO4(aq) + 3H2O(l)
ultraviolet light strikes a metal plate and ejects electrons having kinetic energy E = 2.04 eV. Calculate the binding energy of an electron at the metal surface.
Two compounds of nitrogen tetroxide(N2O4) and hydrazine(N2H4) are used as rocket fuels.When the two are mixed,they ignite and produce nitrogen gas and water.
What mass of O2 is required for the complete combustion of 68.9 g of pentane, C5H12, to CO2 and H2O?
Treatment with chymotrypsin, which cleaves on the carboxy side phenylalanine gave only the tetrapeptide. What is the amino acid sequence for this tetrapeptide?
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