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Use Lewis Symbols to show the sharing of electrons between a silicon atom and hydrogen atoms to form a molecule in which silicon has an octet of electrons.
Hydrogen peroxide, H2O2, is used to disinfect contact lenses. What volume of O2, in mL, of O2(g) at 35°C and 731 mmHg can be liberated from 50.0 mL of an aqueous solution containing 3.00% H2O2 by mass? The density of the aqueous solution of H2O2 i..
determine How many formula units(formula un) of sodium iodide(NaI) are present in 9.54 grams of this compound and also calculate how many gms of sodium iodide are present in 6.07E+21 formula units of this compound.
What is the molecular formula of the molecule that had an empiricial formula of C2 H4 S and a molar mass of 180.35% g/molecular.
express the work of isothermal reversible expansion of a van der waals gas in reduced variables and find a definition of reduced work that makes the overall expression independent of the identity of the gas.
A healthy individual has a blood glucose concentration reported as 122 mg/dL. convert that to units of g/L
What happens to the temperature of a liquid as evaporation occurs. A. The temperature of the liquid increases. B. The temperature of the liquid remains the same. C. The temperature of the liquid decreases. D. Liquids cannot evaporate
What is the theoretical amount of water (MW 18.02 g/mol), in grams, that could form when 26.67 grams of aluminum oxide (MW 101.96 g/mol) reacts with excess hydrogen gas
Calculate the pH after the following amounts of NaOH are added. A) 0mL NaOH added( before the titration started)
(a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell. (c) What is the value of the equilibrium constant for the reaction occurring in this cell
How many joules of heat are given off when 5 g of water cool from 75 degrees C to 25 degrees C?
Capital V will stand for Vbarr(molar volume) (P+(a/V^2))(V-b)=RT is the van der Waals equation and when it is solved for V you obtain cubic equation V^3-(b+(RT/P))V^2+(a/P)V-ab/P=0
A sample of S8(g) is placed in an otherwise empty rigid container at 1325 K at an initial pressure of 1.00 atm, where it decomposes to S2(g) by the reaction S8(g) 4S2(g) At equilibrium, the partial pressure of S8 is 0.25 atm. Calculate Kp for th..
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