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how much will the temp change when 740grams of Iron, stainless steel , aluminum absorbs 1210 cal. of heat energy
A 21.10 g sample of liquid ethanol is initially at -36.90 oC. If the sample is heated at constant pressure (P = 1 atm.), how much kJ of energy are needed to raise the temperature of the sample to 100.60 oC.
In S8 + 12O2-> 8SO3, if 10 grams of sulfur is used, how many grams of sulfur trioxide are produced?
Propose a mechanism for the acid-catalyzed synthesis of 4,5-dimethyldioxolane + water from formaldehyde
How many times g of acceleration are present in an ultracentrifuge with a rotation frequency of 45000 rpm and a distance of 6 cm from the center of rotation. Note: the quantity omega is the angular frequency
Describe how you would prepare a 500 mL of a solution which is 0.500 M sodium and 1.60 M phosphate if you only had sodium chloride and potassium phosphate available
how many grams of dry nh4cl need to be added to 2.50 l of a 0.100 m solution of ammonia nh3 to prepare a buffer
When measuring the boiling point of a compound, why is the micro boiling point determined at the point when the last bubble has left the bottom of the bell and the liquid begins to rise in the bell
What are the missing coefficients for the skeleton equation below?
Calculate the theoretical mass of solid formed. If the reaction in question 1 has 91.2%yield, calculate the actual mass of solid formed
what is the entropy change for freezing 4.25 g of c2h5oh at 158.7 k? h -4600 jmol.answer in units of
Consider the fermentation of one molecule of glucose (Glc) to two molecules of lactate (Lac): Glc 2 Lac. Which of the following sets of concentrations would result in the largest release of free energy at 30°C
a mixture of methane ch4 and ethane c2h6 is stored in a container at 294 mmhg. the gases are burned in air to form co2
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