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Compute the empirical formula of a compound which contains 38.8 percent Ca, 20.0 percent P, and 41.3 percent O by weight.a) Ca3P2O8b) C4P2O12c) Ca4P11O8d) Ca4P11O12e) Ca3P2O12
the ph for a 2.6 moll propanoic acid solution was 2.24. what is thenbspkanbspof propanoic acid given that propanoic
What is the pressure at a closed faucet on the second floor, 5 m above where the water enters the house. (b) How high could a faucet be placed before no water will come out of it
stilbene isomerizes to isostilbene when dissolved in benzene with an appropriate catalyst. isostilbene also isomerizes
Arrange the following gasses in order of increasing density under the conditions given. a. Neon at 2 atm and 273 K b. Neon at 1 atm and 273 K c. Helium at 1 at and 273 K d. Neon at 2 atm and 73 K
Calculate the percent by mass of the solute CH2Cl2 in a solution made by mixing 453 mL of methylene chloride to 2.36 L of the solvent acetone
How many moles of H3O+ must be added to 482 mL of a solution to adjust the pH from 8.80 to 5.56? Use E notation and 3 significant figures.
Without first writing a full molecular or ionic equation, write the net ionic equations for any precipitation reactions that occur when aqueous solutions of the following compounds are mixed.
What is the molarity of ZnCl2 that forms when 30.0 of zinc completely reacts with CuCl2 according to the following reaction? Assume a final volume of 285 mL . Zn+ CuCl2=ZnCl2+Cu.
A normal value for blood cholesterol is 200mg/dl of blood. If a normal adult has a total blood volume of 5 L, how much total cholesterol is present.
A solid aluminum sphere has a mass of 87g. How do you use the density of aluminum to find the radius of the sphere in inches
Arrange the following ionic compounds in order of decreasing amount of energy released in lattice formation:
how much thermal energy is evolved by a reaction in a calorimeter in which the temperature of the calorimeter and water
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