5. How many cal are needed to bring 1750 g ice from -20.0 °C to steam at 110 °C? 10. Calculate the energy needed to heat 25 g water from 65 °C to steam at 145 °C.

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Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6

High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?

Introduction of drugs into the gastrointestinal tract is a form of administration. a. enteral b. topical c. parenteral d. inhalation