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A student weighs an aspirin tablet and finds that it weighs 385 mg. She crushes it, dissolves it, and titrates it with 0.0500 M NaOH solution. The volume required to reach the endpoint is 29.97 mL. How much ASA is in the tablet, and what is its % by weight of the tablet? (You can't use the EMM formula for this problem. Why not?)
A mixture of CaCO3 and CaO weighing 0.630 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.464 g.
A mixture of 1.374g of H2 and 70.31g of Br2 is heated in a 2.00 L vessel at 700 K. These substances react as follows: H2(g) + Br2(g) 2HBr(g) At equilibrium the vessel is found to contain 0.566g of H2.
how many metric tons of oxygetn are combined in a sample of pitchblende that contains 2.3 t of
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively.
Calculate the partial pressure (in atmospheres) of each gas, Assuming that the total pressure of the gases is 1.34atm{rm atm} and that their mole ratio is 94 : 4.0 : 1.5 : 0.50,
Identify the longest, shortest, strongest and weakest bond out of the following: a triple bond, double bond, a single bond carbon attached to methyl groupCH3- CH2- CH- CH3 | CH3 and a single bond between a doubly bonded carbon attached to methyl g..
Organelles compartmentalize a cell like a department store displays similar items together. What advantage does such compartmentalization offer a large cell and what are two examples of oraganelles and the activities they compartmentalize?
3. 6 M HNO3 could not be found on the reagent shelf. Instead, 6 M HCL is added to the test solution. Instead, 6 M HCl is added to the test solution. What affect does this have on the test for sulfide ion. Explain
What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.305mol of NaA in 2.00L of solution
Calculate the equilibrium constant for the dissolution of calcium carbonate at pH=6 in the presence of EDTA as shown below: CaCO3(s) + EDTA^4- (aq) + H+(aq) --> [Ca(EDTA)]2-(aq) + HCO3 (-1 charge)(aq)
What is the change in air temperature(, assuming the heat from the steam is all absorbed by air)
Calculate the change in entropy for 1 mole of the gas undergoing this process. Does your answer make sense. Why or why not
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