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Write the expression for Kc for the following reactions. In each case indicate whether the reaction is homogenous or heterogeneous.
a) 3NO(g) ?? N2O(g) + NO(g)
b) CH4(g) + 2H2S(g) ?? CS2(g) + 4H2(g)
c) HF(g)+H2O (l) ?? H+(aq) + F-(aq)
d) Ti(s) + 2Cl2(g) ?? TiCl4(l)
e) 2Ag(s)+Zn2+(aq) ?? 2Ag+(aq) + Zn (s)
At 25 °C only 0.0210 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C
Classify each of the following as a Lewis acid or a Lewis base. Drag the appropriate items to their respective bins. H-, I-, Fe3+, NO2, SnCl4, CH3OH, (CH3)3N
At what total pressure of bismuth vapor is the partial pressure of Bi(g) just twice that of Bi2(g) at 1000 K? How many phases are present in the system for this situation?
Assuming that the density of the solution is 1.0 g/mL, find the molarity of the hydrogen ion in the solution. The molar mass of HCl is 36.5 g/mol
A 200.0-mL sample of the same tap water required 47.86 mL of the standard EDTA for titration at pH 10 using calmagite indicator. Calculate the molar concentration of Mg2+ in the tap water.
The molecular weight for chlorophyll a is 893.49 g/mol. If the molar concentration of the solution is .00000387, then what is the concentration of the solution in ppm (parts per million)
Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chlorate, KClO3(s). Write the balanced equation. How many moles of oxygen are produced from 12 moles of potassium chlorate?
Determine the boiling point of a solution that contains 78.8 g of naphthalene (C10H8) dissolved in 722 mL of benzene (d = 0.877 g/mL). Pure benzene has a boiling point of 80.1°C and a boiling point elevation constant of 2.53°C/m.
How many moles of SCN-1 are there in 10.0 mL of a 0.000100 M soulution? How many grams. Show me step by step how to do these problems.
suppose that a sample of gas occupies 73 ml of volume at 25c and a pressure of 266 torr. what would be the volume if
Calculate the concentrations of all species in a 0.310-M solution of H2X if K1 = 1.00E-04 and K2 = 1.17E-07
Solid potassium nitrate is decomposed by heating to give potassium nitrite and oxygen gas. If 1.00g of potassium nitrate is heated, what is the milliliter volume of oxygen gas at STP
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