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Suppose you wanted to heat a mug of water (250 mL) from room temperature 25 C to 100 C to make a cup of tea. How much energy (in units of calories and joules) would you need from your microwave?
What is the molarity of a solution when 38.8g of potassium chromate (K2CrO4 ) is dissolved in enough water to make 3 liters of solution
At what temperature would CO2 molecules have an rms speed equal to that of H2 molecules at 25 degrees C?
What is the hydronium ion concentration of a solution with an hydroxyl ion concentration of 1.8 x 10^-10 M? D) What is the hydronium ion concentration of a solution with an hydronium ion concentration of 5.13 x 10 ^-9 M?
which one of the following represents the best method for the preparation of 3-chloro-3 ethylpentane?
Tests on human subjects along the East Coast of the United States in 1965 and 1966, following the era of atomic bomb testing, revealed quantities of about 1.71 pCi of plutonium radioactivity (alpha radiation) in a test subject. How many disintegra..
What is the enthalpy change for the combustion of 12.5 g C4H10 in excess oxygen? C4H10 g + 13/2 O2 g = 4 CO2 g + 5 H2O g H= -1895 kJ
The daily dose of ampicillin for the treatment of an ear infection is 115 mg/kg of body weight. What is the daily dose for a 34-lb child?
propose a mechanism for the conversion of glucose 6-phosphate into fructose 6-phosphate by phosphoglucose isomerase based on the mechanism
Calculate the number of kilograms of helium needed to inflate a balloon to a volume of 100,000 L at an atmospheric pressure of 250 mmHg and a temperature of -35 °C.
The equation below describes the combustion of propane. C3H8(g) + 5O2(g) ? 3CO2(g) + 4H2O (l) a.In the presence of excess oxygen, how many g of CO2 are formed if 322 g of propane are consumed
nbspthe atomic weight of a newly discovered element is 110.352 amu. it has two naturally occuring isotopes. one has a
You prepare a solution from 10.0 mL of 0.100 M MOPS buffer (3-morpholinopropane-1-sulfonic acid) and 10.0 mL of 0.078 M NaOH. Next, you add 1.00 mL of 7.81 × 10-6 M lidocaine to this mixture
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