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How many grams of KCOOH are needed to prepare 150 ml a buffered solution of pH 3.85 if the acid concentration, HCOOH is 0.1M?
In clavulanic acid there is a carbon-atom that that has an oxygen-atom, a nitrogen-atom, and a carbon atom attached to it
The reaction between solid sodium and Iron (III) oxide is one in a series of reactions that inflates an automobile airbag.
Explain why 0.10 M BaCl2 has a higher osmotic pressure that 0.10 M glucose and explain why molarity and molality are nearly the same in dilute solutions.
Three manufacturers are producing carbonated bottled water. One company introduces carbonate by bubbling carbon dioxide into water until CT=10-3 M (equivalent to adding "H2CO3*" until CT = 1 x 10-3 M), a second adds sodium bicarbonate (NaHCO3) unt..
How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator containing 6.50 L of water if the coldest winter temperature in your area is -28°C? (The density of ethylene glycol is 1.11 g/mL
Butane C4H10 is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is
An aqueous solution of nickel acetate is electrolyzed for 3 hours with a 1.8 ampere current. What mass of nickel is produced?
How much ice (in grams) would have to melt to lower the temperature of 351 mL of water from 26 C to 6 C. (Assume the density of water is 1.0 g/mL.)
A quantity of N2 occupies 62.2 L at a particular temperature and pressure. Its density is 0.900 g/L. How many moles of N2 are in the container?
Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant fo..
A gas bottle contains .650 mol of gas at .961 atm pressure. If the final pressure is 1.15 atm, how many moles of gas were added to the bottle.
according to equation, how many grams of Zn will remain after the reaction is complete? Equation [5] = CuSO4 (aq) + Zn (s) ----> ZnSO4 (aq) + Cu (s)
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