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1) How many total moles of ions are released when each of the following samples dissolves completely in water?(b) 7.22 g of MgSO47 H2O(c) 5.962 1021 formula units of NiCl2
2) If 21.0 mL of silver nitrate solution reacts with excess potassium chloride solution to yield 0.882 g of precipitate, what is the molarity of silver ion in the original solution?
Predicting nuclear stability is important when determining whether or not a nuclear reaction can take place spontaneously. Use the following set of guidelines to predict the nuclear stability of the elements listed below. Stable nuclei have a high ne..
Calculate the calorimeter constant. The enthalpy of combustion of antracene is -7061 kJ/mol.
NaOH + CO2 - >Na2CO3 + H2O. If the average human body discharges 716 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft? Answer in units of mol.
The statements in the following multiple choices deal with various aspects of reaction rates
The amount of 2.50 mol of a perfect gas is heated from 100.0 K to 320.0 K. as a result, the gas expands against a constant pressure. determined the work done by the system
The overall reaction in the lead storage battery used in your car is Pb (s) + PbO2 (s) + 2 H+ (aq) + 2 HSO4 - (aq) ? 2 PbSO4 (s) + 2 H2O (l) a. For the overall cell reaction
The following temperature/ composition data were obtained for a mixture of two liquids A and B at 1.00 atm, where x is the mole fraction in liquid and y the mole fraction in the vapor at equilibrium.
The rate of the following reaction is 0.120 M/s. What is the relative rate of change of each species in the reaction
gas is introduced into an evacuated 3.58 L flask at 65 deg. C, what is the pressure inside the flask
The equilibrium concentration of HA will be less than the stoichiometric concentration because some or all of HA ionizes.
after 50 g of certain substance is heated in air until no further reaction occurs 39.9 g of metal is left. is the
Considering the properties required of molecules for them to undergo steam distillation, explain why a treating mixture of vanillin and eugenol to steam distillation would result in distillation of eugenol only.
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