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When 95.0g of an unknown metal are submerged in water in a graduated cylinder, the waterlevel rises from 32.2 ml to 49.5 ml. calculate the density of the metal.
gold has a density of 19.3 g/ml. Suppose you have 100.0 glonkins of gold. what volume in liters will the gold occupy. please use unit analysis 0.911 ounce per glonkin and 28.35 grams
An excess of NaOH is treated with 1.1L of dry HCl gas (measured at STP). What is the weight of NaCl formed?
a gas sample has an original volume of 680 ml when collected at 720 mm and 28degc. what will be the volume of the gas
mixed 14.5 mL of a .500 M sodium flouride solution with 15.6 mL of a .750 M hydroflouric acid solution the measured Ph was 3.24. Calculate the pKa.
What statement below best describes the graph representing the integrated 1st order rate law plot of ln[a] vs t having a straight line negative slope equal to -k
A solution containing a mixture of metal cations was treated with dilute HCl and no precipitate formed. Next, H2S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and H2S was ag..
a at present in san jose the number of cars per capita is 1.5. in five years from now the number of cars per capita
show the acid catalyzed enamine product formation from 2-butanone and diethylamine
Above what temperature, in °C, will the following reaction become spontaneous? Assume free energy, enthalpy, and entropy are not temperature dependent.
A solution is prepared by mixing 75.0 mL of 0.020 M BaCl2 and 125 mL of 0.040 M K2SO4. What are the concentrations of barium and sulfate ions in this solution. Assume only SO4^-2 ions (no HSO4-) are present
A student prepares a weak acid solution by dissolving 0.2500 g HZ to give 100. mL solution. The titration requires 30.0 mL of 0.1025 M NaOH
Five mineral samples of equal mass of calcite, CaCO3 (MM 100.085), had a total mass of 10.1 ± 0.1 g. What is the average mass of calcium in each sample
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