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A student was given a standard Fe(s) | Fe2+(aq) half-cell and another halfcell containing an unknown metal M immersed in 1 M MNO3(aq). When these two half-cells were connected at 25 ?C, the complete cell functioned as a galvanic cell with E = 1.24 V. The reaction was allowed to continue overnight and the two electrodes were weighted. The iron electrode was found to be lighter and the unknown metal electrode was heavier. What is the standard potential of the unknown M+/M couple?
CHEM 354 Extended Problems, The variation of EMF for the cell below with temperature is shown in the graph below.
Find the partial pressure and concentration of Nitrogen, Oxygen, and Carbon dioxide.
in a laboratory, 6.82 g of Sr(NO3)2 is dissolved in enough water to form 0.500 L of solution. A0.100-L sample is 0.0245 M solution of Na2CrO4.
Elements cannot be decomposed by chemical means, but can be decomposed by physical means.
Calculate the amount of heat liberated (in kJ) from 383 g of mercury when it cools from 61.0°C to 11.0°C.
where all compounds are assumed as covalent then determine which reaction must be endothermic and also explain your answer briefly?
Determine what type of bond is expected for a compound formed between Magnesium and Oxygen Based on these values,?
Do all chemical compounds undergo each type of chemical reaction,i.e. synthesis, decomposition, metathesis-precipitation, metathesis-neutralization, redox-single displacement, redox-combustion and can this information be useful to a criminal inves..
Lewis Structure and state which of the given compounds are isomers - There are three compounds are given as I. pentane , II. 2-methylbutane , III. 2,3-dimethylbutane , IV. 2,2-dimethylpropane V.
In the purification process, the organic layer is washed sequentially with 2 M NaOH, water, and saturated aqueous sodium chloride. What is the purpose of each of these washes and why is cold 2 M NaOH recommended?
What is the minimum volume of 2.6 M HBr required to completely dissolve 25.0 g of potassium metal?
A 50.0g silver object and a 45.0 g gold object are both added to a 55.5 mL of water contained in a graduate cylinder. what is the new water level in the cylinder.
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