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A current of 1000. A flows for exactly one hour through a cell in which the subsequent reaction occurs at one of the electrodes.
Mg2+ + 2e- ® Mg
a. Compute the charge, in coulombs, which passes through the circuit in this time.
b. Compute the theoretical mass of Mg magnesium metal which is produced.
Choose the answer which gives the electron-domain geometry and molecular geometry which are both correct for TeF4.
A buffer is prepared using the propionic acid/propionate acid-base pair for which the ratio (of acid to base) is 4.50. (a) Enough strong base is added to convert 27% of HC3H5O2 to C3H5O2-. What is the pH of the resulting solution
Explain a volume of 18.0 L contains a mixture of 0.250 mole N2, 0.250 mole O2, as well as an unknown quantity of He. The temperature of the mixture is 0 Celsius, as well as the total pressure is 1.00 atm. Explain how many grams of helium are prese..
As he was looking for the baking soda he found something else that would help alleviate the rash. What could've AJ used to help with the diaper rash?
Classify the following as exothermic or endothermic reactions: a) The energy level of products is lower than that of the reactant. b) In the body, the synthesis of proteins requires energy. c) 125kJ is absorbed.
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more complicated, but this is a reasonable first approximation.)
Calculate the standard-state entropy for the following reaction: 1 \rm CH_4(g) + 2 \rm O_2(g) \longrightarrow 1 \rm CO_2(g) + 2 \rm H_2O(l) (If applicable, coefficients of one have been included for clarity.)
for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 425mL of a solution that has a concentration of Na+ ions of 1.50M?
A balloon was filled to a volume of 2.50 rm L when the temperature was \rm 30.0^{\circ}C. What would the volume become if the temperature dropped to rm 11.0^{circ}C.
Write a balanced chemical equation for the following reaction in a basic solution. ClO4-(aq) + Cu(s) ---> ClO3- (aq) + Cu(OH)2(s) 4 stars for whoever answers correctly
When mixed HCl an acid and NaOH a base will react with each other. a) Write the balanced neutrali zation equation for this reaction
Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) + H2O(l) -→ 2 HNO3(l) + NO(g) If 927 L of NO2 gas react with water, what volume of NO gas will be produced? Assume the gases are measured under the same c..
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