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Whenever the variables in a system are constrained, a degree of freedom is lost for each one so constrained. Suppose, for example, that a magmatic system cools and crystallizes at a constant pressure (called an "isobaric" system). In what way might we modify Equation 6-1 of the phase rule for such an analysis?
CaC2(s) + 2H2O(l) = C2H2(g) + Ca(OH)2(aq) . If 34 g of CaC2 are consumed in this reaction, how much H2O is needed?
When 13.0 g of the mixture is dissolved in enough water to make 500. mL of solution, the solution exhibits an osmotic pressure of 6.85 atm at 25°C. Determine the mass percentage of NaCl in the mixture.
began with 81.0 mmol of isopentyl alcohol, how many grams of isopentyl acetate could you theoretically produced assuming only 65.0% attainable yield?
Determine the empirical formula for each substance.
How many calories are required to heat 25.0 g of platinum (specific heat capacity = 0.032 cal/g.K) from 24.5 oC to 75.0 oC?
you wish to prepare a buffer solution containing nan3 and hn3 hydrazoic acid. you have to prepare the solutions first.
Marble (calcium carbonate) reacts with hydrochloric acid solution to form calcium chloride solution, water, and carbon dioxide. What is the percent yield of carbon dioxide
what is the density of a piece of metal if it's mass is 201 g and its volume is 18.9 cm3
Neopentyl alcohol, (CH3)3CCH20H,cannot be dehydrated to an alkene without rearrangement. What is the chief product of dehydration?
a solution is prepared by adding 50.0ml of 0.050m HBr to 150.0ml of 0.10m HI .calculate the concentrations of all species in this solution HBr and HI are both considered strong aicds ?
If He(g) has an average kinetic energy of 6410 J/mol under certain conditions, what is the root mean square speed of Cl2(g) molecules under the same conditions?
Calculate the bicarbonate and carbonate alkalinities, in mg/L as CaCO3 , of a water having a total alkalinity of 233.0mg/L as CaCO3 and a ph of 10.47?
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