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Sodium nitrate, NaNO3, is sometimes added to tobacco to improve its burning characteristics. An aqueous solution of NaNO3 has a concentration of 0.483 m. Its density is 1.0822 g mL-1. Calculate the molar concentration of NaNO3 and the mass percent of NaNO3 in the solution. What is the mole fraction of NaNO3 in the solution?
Compute the cell potential(E) after the reaction has operated long enough for the [Al3+] to have changed by .60 mol/L. suppose T=25 C
Estimate the value of the equilibrium constant at 685 K for each of the following reactions. Delta H and S for BrCl(g) is 14.6 kJ/mol and 240.0 J/ mol * K, respectively. 2 NO_2(g) > N_2O_4(g.
Calculate the value of heat of vaporization for this liquid Calculate the normal boiling point of this liquid.
Consider the cell described below. Al | Al3+ (1.00 M) || Pb2+ (1.00 M) | Pb Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by 0.32 mol/L. (Assume T = 25°C.)
Calculate the energy of attraction (in eV) between a cation with a valence of +2 and an anion with a valence of -3,
What is the percent by mass of NaHCO3 in a solution containing 20 g NaHCO3 dissolved in 700 mL H2O?
how many milliliters of .45M hydrochloric acid must be added to 25.0 mL of 1.00 M potassium hydroxide to make a neutral solution?
if 0.200mole of NaOH is added to 1 liter of solution that is 0.100M in aqueous ammonia and 0.200M in ammonium chloride how much does the Ph change.
Consider a gas at 1.00 atm in a 5.00 L container at 20 degrees celsius. What pressure does the gas exert when transferred to a volume of 2.77 L at 43 degrees celsius?
the actual yield of a reactant is 22 g and the theoreticaal yield is 25 g calculate the percentage yield
draw the shape of the molecules and give the orbital geometry around the central atom; the molecular geometry; and give the hybridization state
what effect could having too much compound in the capillary tube have on the observed melting point? a) the observed melting point would not change
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