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Twenty defibrillators are tested for 24 hours per machine. Of all the machines tested, 5 experience malfunctions during the test. Compute the number of failures per hour and MTBF.
Assume the gas was at constant volume and the can did not explode.
Explain what is the molarity of a hydrochloric acid solution prepared by diluting 500.0mL of 1.00 M HCL to a total volume of 2.50L
The H NMR spectrum of a compound with formula C3H8O demonstrate signals at 1.2 (doublet) 2.2 (singlet) and 4.0 (septet, split seven ways). Define the structure and provide an acceptable name of the compound.
Statements correctly describe(s) the relationship between the structure of a fatty acid and its melting point? a. Saturated fatty acids have melting points that increase gradually with molecular weight.
The running engine of an automobile preoduces carbon monoxide Co, a toxic gas at the rate is of about 0.117 mol CO per minute. A car is left idling in a poorly ventilated garage that is 6.0m long 4.0m wide and 2.2 m hight and 20.0 C.
18.0 grams of oxygen is reacted with nitrogen to make 56.0 grams of nitrogen dioxide according to the following reaction: 2O2 + N2 --- 2 NO2
Calculate the difference in pressure of 10.00g of carbon dioxide confined to a container of volume 100cm3 at 25.0 C between treating it as a perfect gas and a van der Waals gas.
Why does ionization of a tertiary substrate proceed at a rate faster than that of a secondary substrate
What is the product formed when 2-methly-2-butene is treated with NBS and light. What is the product formed when 2-methly-2-butene is treated with CL2 and heat
Problem- A reaction has an equilibrium constant of 7.3x10^3 at 298 K. At 704 K, the equilibrium constant is 0.54. Find the delta H for the reaction.
What is the number of substituents that are equatorial for a stable (E)-1-chloro-3-methylcyclohexane when A for methyl is 1.74 and A for chloro is 0.50
Substances A, B, and C can all act as oxidizing agents. In solution, a is green, B is yellow, and C is red. In the reactions in which they participate, they are reduced to A^-, B^-, and C^- ions, all of which are colorless.
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