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An electric current of 326. mA transports 0.30 kC of charge. Calculate the time this took. Be sure your answer has the correct unit symbol and the correct number of significant digits.
Problem- What is the chemical equation for the above. Is there a reaction? If so, what are the balanced 1) molecular, 2) ionic, 3) net ionic equations? What are the states in the net ionic equation
Based on the stoichiometry, at what point does the limiting reactant change? show calculations to support your answer. The volume of acid HCL (10mL) is constant and mass of metal Mg (0.250g) is constant.
Using the approximate value of g = 10 m/s2, what are the magnitude and direction of the ball's velocity at the following times?
Write the Nernst equation for this reaction, and then replace the molality of H+ with a relation using Kw and the molality of OH-. Rearrange this expression to solve for pKw (=-logKw) in terms of the standard and measured cell potentials and the g..
The sodium salt of its conjugate base, sodium amide (NaNH2), is a well-known compound. Calculate the pH of a 0.01 M aqueous solution of NaNH2.
Drag the flask and drop it on the lower half of the burette to connect them. Open the Data window and click on the flask. Click the Pushpin icon in the blue bar of the Data window to lock its display to the flask's contents.
Problem- assuming an efficiency of 41.80% calculate the actual yield in grams of magnesium nitrate formed from 132.2 g of magnesium and excess copper (ii) nitrate
a s2- ion-selective electrode gave an electrodepotential of e -0.254 v when immersed in a 7.76 10-2 m standard k2s
Calculate the Ph the percent dissociation as well as the consecration of c6h5o- and OH- IN a 0.10 m phenol solution hc6h5o ka=1.3*10-10 kw =1.0*10-14
Calculate the molar concentration of ferrocyanide in a solution of 0.031 M ZnSO4 saturated with Zn2Fe(CN)6. ZnSO4 will be completely dissociated into Zn2+ and SO42-
During the compression, a heat transfer of 1.6 Btu occurs from the nitrogen to its surroundings. Assuming ideal gas behavior, determine A.) the mass, in lb of the nitrogen B.)the work in Btu.
Bromine is extracted from the sea and is exported, by mass, as a 50% calcium bromide solution. What is the mass of bromine in a 120 000 kg solution?
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