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Design an apparatus that measures the metabolic heat loss rate and surface temperature of a yeast culture or a small insect at various environmental temperatures.
Construct and calibrate this apparatus if possible, and make enough measurements to plot Q/Tb for some living system vs. time at various environmental temperatures. Does Q/Tb increase or decrease as the environmental temperature decreases?
Permanganate can be used to oxidize oxalic acid all the way to carbon dioxide. If you balance this redox reaction in acidic solution, which of the following statements about the balanced reaction is not true
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).
The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the hydrocarbon into carbon dioxide and water. The overall reactions of a number of such steps for methane gas is as follows
What is the energy, in J/photon, of electromagnetic radiation that has a frequency of 2.89 x 1015Hz ? Express your answer to 3 significant figures in scientific notation and do not include units.(4.45 x 10-3 can be represented in scientific notati..
The equivalence point was reached by adding 11.62 ml of NaOH from the buret. What is the molar mass of this unknown acid
While a 0.579g sample of a mixture of volatile hydrocarbons is burned in a bomb calorimeter with a heat capacity of 3389 J/degrees Celsius, the temperature rises by 6.40 degrees Celsius. Explain how much energy (in kilojoules) is released during c..
elemental boron as a gas is produced in one industrial process by heating diboron trioxide with magnesium metal also
Which of the following statements is/are correct. a) Water is an example of non-polar solvent. b) Any solution always conatins an electrolyte c) NONE d) A solute is always molecules dissolved in water and cannot be ions.
3.953g of egg shell was reacteed with 50ml of 0.1 mol/l hcl and shel contains ca2co3 after all the sheell reacted resultign solution was placed in a columetric flask and th colume made up to be 100ml.
Choosing CO^2+, write a series of two balanced chemical equations representing the reaction that occurs when HCl and NH3 are added to an aqueous solution of the transition metal cation.
A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.75 M solution of NH3. Calculate the pH of the final solution.
Manganese has a body-centered structure cubic unit cell and has a density of 7.88 g/cm^3. from this information determine the length of the edge of the cubic cell
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