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In a gas mixture, the partial pressures are argon 447 mm Hg, neon 77 mm Hg, and nitrogen 144 mm Hg. What is the total pressure (atm) exerted by the gas mixture?
Write out the un-ionized structure of valine & phnylalanine. Do either have enantiomers? Write the zwitterion structures of both.
how many mL of 1.00 M hydrochloric acid is needed to prepare a 100.0 mL solution of hydrochloric acid with pH = 5.0 that also contains 0.01667 M MgCl2?
suppose 12.0g of carbon (c) react with 70.0g of sulfur (s) to give 76.0g of the compound carbon disulfide (CS2).In the process all the carbon used up, but some elemental sulfur is left over.
Since that food is not commonly consumed by the general public, what part of the population would be likely to suffer a biotin deficiency by way of consuming that food
A solution is prepared by mixing 66.7 g H2O with 33.3 g HOCH2CH2OH (ethylene glycol). What is the concentration of ethylene glycol in units of molality? The molar masses of water and ethylene glycol are 18.02 g/mol and 62.07 g/mol, respectively
Calculate the change in free energy (Delta G) for the combustion of 1 mol of ethane C2H6 in oxygen gas. The products are carbon dioxide and water.
if the partial pressure of oxygen drops below 100 mmhg passengers become drowsy. if this happens oxygen masks are
Describe an electrochemical cell that would have the following net equation, by answering the following questions. Fe(s)+Ni^2(aq)-->Ni(s)+Fe^2+(aq)
Compare the term symbols for the ground state configuration and the first excited state configuration of He. Which term symbol represents the lowest energy state for each configuration
What metal ions are involved in electron transport, and what is special about them that enable electrons to be shuttled among the various proteins
The neutrons from one treatment source have an average velocity of 3.4 x 10^7 m/s. If the velocities of the individual neutrons are known to within 2% of this value, what is the uncertainty in this position of one of them
A gas cylinder that contains argon has an internal volume of 6.88 L. A pressure gauge attached to the cylinder reads 1870 psi (1 atm = 14.7psi) at 20.0C.
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