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1 tums tablet is 1.3g which has .5g of calcium carbonate, how many moles of calcium carbonate are in one tums tablet? From that value, calculate the number of moles of HCI that two TUMS tablers can neutralize
balance the equation when 1-butanol is added to acetic acid.....then 1 drop of conc. sulfuric acid is added, and then 2 mL of water.
Calculate an unknown concentration of cobalt (II) nitrate if it and the original substance I was using both exhibit the color red? I'm pretty sure the answer is yes, but I want to double check.
Use the Ideal Gas Law in the form n=PV/RT. Remember to change all units to correspon to the values for the gas constant. R=0.0821 L*atm/mol*K.
State the meaning of alpha and beta with regard to steroid structure, and indicate whether the hydroxyl group on ring A
Could someone explain this competition and interaction? I know that chromatography is based on the attraction with the stationary phase or mobile phase
The human body contains 63% H, 25.5% O, 9.45% C, 1.35% N, 0.31% Ca, and 0.22% P, plus several elements present in smaller quantities. Are these mass or mole percents
What net ionic equations for the precipitation reaction or reactions that occur. What are the spectator ions in the solution
consider a .7 L of a buffer composed of 0.4 M HClO and 0.5 NaClO? How many moles of strong base could this buffer withstand?
Write the net redox reaction.
Pure silver has a density of 10.50 g/cm3. A 22.8 gram sample reputed to be silver displaces 2.0 mL of water. Is the sample pure silver? and why?
One mole of N2, one mole of O2, and 0.5 mol of H2 are at 25 oC and 1 atm. The final total pressure of the mixture is 1 atm. Calculate delta_S on forming the mixture.
One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement reaction between and aqueous HF.
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