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A nurse is asked to deliver morphine bt IV to a patient at a rate of 20 mg every four hours. The concentration in the IV bag is given as 0.13%. How many milliliters (mL) will the patient receive in an eigfht-hour period?
The initial volume of a sample of argon gas is 415 mL at 323°C. If the pressure is held constant and the volume is changed to 599 mL, what will be the new temperature (in °C)?
A young child grows rapidly, with high levels of cell division and high energy requirements. If you were planning the child's diet, which food groups would you emphasize, and why? Which good groups would you deemphasize, and why?
Find delta H for the solution of one mole of NaOH in H2O If calorimeter constant is 11 cal/deg C
Compute the molar mass of vitamin C if a solution of 22.7 g in 100. g of water freezes at -2.40 oC. The Kf of water is 1.858 oC kg/mol.
Consider 2 Al + 6 HCl → 2 AlCl3 + 3 H2 , the reaction of Al with HCl to produce hydrogen gas. This reaction has a yield of 82.5 percent. How much HCl are needed to produce 14.0 L of H2 at 351 K and 1.11 atm ?
The rate of effusion of a particular gas was measured and found to be 24.0 mL/min. Under the same conditions, the rate of effusion of pure methane (CH4) gas is 47.4 mL/min. What is the molar mass of the unknown gas?
What mass of NH4Cl should the student dissolve in the solution to turn it into a buffer with pH =8.77
Green light of a wavelength 516 nm is absorbed by an atomic gas. What is the energy difference between the two quantum states involved in the transition.
How many liters of 13.5 molar HCl stock solution are needed to make 10.5 liters of a 1.8 molar HCl solution?
A new global sustainable business and industry incubator network is expanding into a Paris suburb. They want to make the newly acquired building and operations more environmentally friendly.
Calculate the molality of the solution and the 95% CL, and write the final result with correct format.
What is the pressure in a 10.0 L cylinder filled with 0.470 mol of nitrogen gas at a temperature of 329 K ?
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