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Silicon is the fundamental component of integrated circuits. Si has the same structure as diamond. Is Si a molecular metallic, ionic, or covalent-network solid?
calculate the percentage ionization of benzoic acid at the following concentration : assume the approximation for both cases to be correct : a) 0.20M b) .0.00020M
Liquid water and nitrogen monoxide gas are produced from the reaction of 22.7 grams of ammonia gas with 53 grams of oxygen gas. 36.0 grams of water were measured at the end of the reaction. What mass of nitrogen monoxide gas was produced from the ..
How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 609 kJ of energy
Calculate the number of grams of sulfuric acid in 0.460 of battery acid if the solution has a density of 1.27 and is 37.8 sulfuric acid by mass.
The cell potential of the following electrochemical cell depends on the ph of the solution in the anode half-cell:
What are the molality and mole fraction of solute in a 36.3 percent by mass aqueous solution of formic acid (CH3OH)?
Calculate the change in internal energy for a system if a gas cools and releases 10.86 kJ of heat and expanded from 2.35 L to 22.86 L at 3.50 atm
Question- What is the effect of pH on the solubility of calcium carbonate. Why is this the case. Explain this using the equilibrium curves for calcium carbonate.
it is concerned with the he atom and its wave functions.the ground state wave function is?1s 2za0 32 e -ra0and the
2 NH3(g) + 3 O2(g) + 2 CH4(g) → 2 HCN(g) + 6 H2O(g) If 5.46x10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
Calculate the molality of a 0.055 M solution of ethyl alcohol of in water at 25 C. (Assume the density of the solution at such low concentration is equal to that of water at 25C, 0.997 g/mL.
If a solution is made of naphthalene in heptane and has a vapor pressure of 82 torr, what is the mole fraction of naphthalene? Assume ideal solution behavior.
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