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A molecular compound that obeys the octet rule in which all atoms have a zero formal charge is a) BaCl2 b) BrF3 c) NCl3 d) XeF4
Calculate the change in molar Gibbs energy of tristearin when a deap-sea creature is brought to the surface ( p=1atm) from a depth of 2km. To calculate the hydrostatic pressure, take the mean density of water to be 1.03g/cm
carbon dioxide escapes due to A leak , leaving only 3.5 moles of CO 2 inside the balloon. Determine the new volume of the balloon?
For the diprotic weak acid H2A, Ka1 = 3.2 × 10-5 and Ka2 = 7.9 × 10-7. What is the pH of a 0.0400 M solution of H2A? What are the equilibrium concentrations of H2A and A2- in this solution
A balloon originally has a volume of 4.39L at 44 C and a pressure of.959atm. The balloon must be cooled to what temperature in order to reduce its volume to 3.78 L?
water flowing through pipes of carbon steel must be kept at PH 5 or greater than limit corrosion if an 8.0 *10^3 Ib/hr water stream contains 10 ppm sulfuric acid and 0.015% acetic acid, how many pounds per hour of sodium acetate trihydrate
For an aldol reaction, the key step is the attack on the partially positive carbonyl carbon by a nucleophile. Rank benzaldehydes by their reactivity in an aldol reaction.
A compound containing nitrogen and oxygen is decomposed in the laboratory and produces 1.78 g of nitrogen and 4.05 g of oxygen. Calculate the empirical formula of the compound.
What is the change in total pressure within the chamber following the reaction? Assume a constant temperature throughout the process.
The total volume of seawater is 1.5X10^21 L. Assume that seawater contains 3.1 percent sodium chloride by mass that its density 1s 1.03 g/mL. Calculate the total mass of sodium chloride.
what is the theoretical yield of aluminum oxide if 2.40 mol of aluminum metal is exposed to 2.10 mol of oxygen
Write symbol for bromine.What is the atomic number of it in periodic table?How many protons and electrons are there in the atom of bromine?Give the highhest possible and minimal oxidation number for bromine.Determine its molar mass.
In one experiment, when 112 grams of calcium oxide was mixed with 224 grams of ammonium chloride, 16.3 grams of ammonia was produced. What is the percent yield of ammonia in the experiment
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