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What element is this from the periodic table ? Atomic Number = 6, Protons = 6, Electrons = 6, Atomic Weight = 12.0. Electrons in first energy level = 2; second energy level = 4.
what mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepar a 0.0500 molal solution of ethanol
If doing by hand, please write dark onpaper before scanning. Balance and do total net ionic equations
an unknown rectangular substance measures 3.6 cm high 4.21 cm long and 1.17 cm wide. if the mass is 21.3g what is this
Gaseous phosphorus and chlorine combine to produce phosphorous trichloride: P2 (g) + 3Cl2 (g) -> 2PCl3 (g) ?G0= -642.9 kJ mol-1 What is the value of ?G in J mol-1 for a reaction mixture consisting of 1.5 atm P2, 1.6 atm Cl2, and 0.65 atm PCl3
Calculate the potential delivered by a voltaic cell operating by the following reaction if all of the dissolved species have a concentration of 0.035 and the pressure of H2 (g) is 1.00 atm.
Calculate the conditional formation constant Kf' for the formation of an EDTA complex with copper(II) at a pH of 5.00, if log Kf = 18.80.
The compound dichlororodifluoromethane (CCl2F2) has a normal boiling point of-30C, a critical temperature of 112C, as well as a corresponding critical temperature of 40 atm. If the gas is compressed to 18atm at 20C, will the gas condense. Why if s..
A liquid has a heat of vaporization of 30400 J/mol. At 271 K it has a vapor pressure of 102 mmHg. What is the normal boiling point of this liquid
8. The lethal inhalation dose of sarin for a 200lb person has been determined to be 0.0015 mg. Determine the LD50 of sarin that researchers used to calculate this lethal inhalation dose.
Given a balanced chemical equation and enthalpy of reaction, relate energy change to amount of reactant or product
Calculate w (in kJ) when 566 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 332 K: 2Fe2O3(s) + 3C(s) ? 4Fe(s) + 3CO2(g)
react with an excess of H3PO4, how many grams of water and how many grams of Ca3(PO4)2 will have on the products side? Also, what type of reaction is it?
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