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How many valence electrons does the molecule SO3 have?
What's the electron geometry of SO3?
What's the bond angle in the molecule of BF3?
How many electron groups are there around the central atom of PF5?
How many electron lone pairs are there around the central atom of XeF4?
Calculate the minimum number of grams of propane,C3H8 (g) , that must be combusted to provide the energy necessary to convert 3.15kg of ice at -15.5degC to liquid water at 75.5degC. C3H8 (g)
Calculate the junction depth where the phosphorus meets the substrate (p type. 1 x 1015 cm-3) after (a) a 900°C, three-hour anneal.
A wooden artifact from a Chinese temple has a 14C activity of 34.3 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age. From the half-life for 14Cdecay, 5715 yr determine the age of the artifact.
predict the product if any of reaction between propanoyl chloride and the following reagentsa li ph2 cu in etherb
The compound X2Y is only partially dissociated in water solution to form X and Y2- ions. A 0.0100 m solution is found to freeze at -0.040°C. Calculate the apparent percent dissociation of X2Y. Kf for water = 1.86°C/m.
How many antacid tablets should you give him if you want to neutralize all his stomach acid and explain your rationale for your answer. Include the balanced equation you used to determine your answer.
Describe and explain the possible effect on your results of the following experimental errors or variations. in each case, specify the component(s) whose percentage(s) would be too high or too low
What indicates that the pK of an acid is numerically equal to the pH of the solution when the molar concentration of the acid and its conjugate base are equal?
How is the rate of disappearance of ozone related to the rate of appearance of oxygen in the following equation: 2 O3 (g) ? 3 O2 (g) (rate expression)
Problem- Ethyl acetate reacts with H2 in the presence of a catalyst to yield ethyl alcohol- C4 H8O2(l) +H2(g)-------> C2H6O6(l) Part a) Write a balanced equation for the reaction.
Of the metals Au, Fe, Na, and Cd, which will not give up its electrons to silver in a redox reaction
Mark all the true statements A.) The value of [R]/[P] is the equilibrium constant B.) The amount of P present will not change. C.) The concentration of [R] is constant. D.) The reaction P--> R no longer takes place
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