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What is the theoretical yield (in grams) of C9H8O4 when 2.00 g C7H6O3 is heated with 4.00 g of C4H6O3? If the actual yield is 1.98 g, what is the percent yield?
C7H6O3 + C4H6O3 → C9H8O4 + C2H4O2
Calculate how many mL of 0.100 M NaOH are needed to neutralize completely 49.0 mL of 0.0800 M H2SO4 (forming Na2SO4 and water).
Compute the translational, rotational, vibrational (compute excluding and including the zero point energy term), as well as electronic (compute taking the zero of energy to be that of the ground state molecule as well as that of the separated atom..
What is the molarity of a solution made by dissolving 74.8 g of strontium perchlorate in sufficient water
The buffer from Part A is diluted to 1.00 rm L. To half of it (500. rm mL), you add 0.0250 mol of hydrogen ions without changing the volume. What is the rm pH of the final solution?
liquid nitrogen has a density of 0.808gml at 77 k. a sample of 2.5 l of liquid nitrogen is allowed to evaporate at
The production of iron and carbon dioxide from Iron (3) oxide and carbon monoxide is an exothermic reaction? how many kj of heat are produced when 3.40 mol Fe2O3 reacts with excess of CO.
What mass of gold is produced when 5.90 A of a current are passed through a gold solution for 16.0 min?
A student is asked to determine the formula of a hydrate of colbalt (II) chloride. The mass of the empty clean, dry crucible and cover, after heating is 22.446 g. A sample of 0.324 g of cobalt chloride is added to the crucible.
Suppose that you had a sample containing 75% by weight Potassium Chlorate and 25.0% inert nonvolatile material. What weight loss should you observe after intense heating, if the original sample weighed 1.100 g
The neutrons from one treatment source have an average velocity of 3.5 x 10^7 m/s. When the velocities of the individual neutrons are known to within 2% of this value, define the uncertainty in this position of one of them?
Under these conditions, the half-life of the reaction has been estimated to be 6.4 103 min. What would the half-life be if the initial concentration of NO were 13 ppm?
The gas above the top liquid is at an absolute pressure of Pg. Furthermore, the densities and heights of liquid 1 and liquid 2 are P1 and P2 , and L1 and L2 , respectively. In terms of these given symbols, waht is the absolute pressure at the bott..
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