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For each of the reactions shown, calculate the mass (in grams) of the product formed when 2.9 of the underlined reactant completely reacts. Assume that there is more than enough of the other reactant.
1)Ba(s)+Cl2(g)-----BaCl2(s)
2)Al(s)+3O2(g)----2Al2O3(s)
what will happen if a small amount of HCl is added to a 0.1M solution of HF? a. the percent ionization of HF will decrease. b. Ka for HF will increase
Reaction/exchange rates of CO2 and O2 in the alveoli must be included. Given that the inhalation and exhalation times are different, calculate the rate of important gases during the inhalation and exhalation process.
A voltaic cell made of a Cr electrode in a solution of 1.0 M in Cr^3+ and a gold electrode in a solution that is 1.0 M in Au^3+. a) Provide the hald cell reactions for each of the electrodes.
Name some factors, besides weight and cost effectiveness, that one might consider when choosing one brand of antacid over another. Explain.
Given the pK for acetic acid is 4.76. Suppose that we dissolve a mole of this weak acid in 10L of water. Find the pH of the resulting solution.
Determine the limiting reactant and the numbers of moles of Cu will be formed If you place .092 mol of iron filling in a solution containing .158 mol of Copper sulphate,?
if the half life of a certain radioactive element is 1,250 years what is the percent of atoms remaining after 7,500 years is ?
Which of the following combinations of n and l represent real orbitals and which are impossible? 4s 3p 3f 2p
Calculate the number of moles of B at each time in the table. 0 s mol 40 s mol 80 s mol 120 s mol 160 s mol (b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s. 0 - 40 s mol/s 40 - 80 s mol/s 80 - 120 s m..
Carbon and silicon belong to the same group and are known to have similar properties. Do you think that silicon can replace the role that carbon plays in organic chemistry
What is the effective concentration between the ends if you consider the characteristic ratio of dna?
Calculate the mass in grams for an iron bar that loses 2.72 when its temperature drops from 242 to 72.
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