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What volume of gaseous chlorine at STP would you need to obtain a 250.0 g sample of gas?
A student adds 6.60 of a 0.380 solution to the beaker. How much will the pH change? The of acetic acid is 4.760.
although even more strained than cyclopro-panone, is nevertheless quite stable and can even be distilled. Explain, taking the polarity of the carbonyl group into account.
Calculate the pH at the following points a. Before Titration b. After the addition of 5.00mL of NaOH c. After the addition of 25.00mL of NaOH d. After the addition of 50.00mL of NaOH e. After the addition of 5.00mL of NaOH
A 120 pound woman working in an office consumes about 2200 kcal/day, whereas the same woman climbing a mountain needs 3400 kcal/day.
Find the molar reaction enthalpy by diving by the number of moles H+ and OH- that reacted (assume that the solution which is actually 1M NaOH, has the same density and heat capacity as water)
Carbon-14 has a half-life of 5730 years. A sample of carbon with a mass of 0.120 g has an activity of 40 decays/hr. The initial specific activity is assumed to have been 900 decays/hr/gram. How old is the sample
Copper dissolved in nitric acid, producing copper (II) nitrate. After reaction with sodium hydroxide and heating, copper nitrate changed to coper (II) oxide. Calculate the percent yield of this process if 1.075 g of copper produced 1.075 g of copp..
A student mixed 75.0 mL of water containing 0.75 mol HCl at 25 degrees C with 75.0 mL of water containing 0.75mo of NaOH at 25 degrees in a foam up calorimeter. The temperature of the resulting solution increased to 35 degrees C.
You will encounter a simiar mixture in this experiment. The solubility product constants for ZnS and CuS are 1.1x10^-21 and 6x10^-36, respectively. A.) Show that both ZnS and CuS will precipitate at pH8. B.) Show that only CuS will precipitate whe..
What will be the likely effect of clearing forests and converting them to grasslands and crops on (a) the earth's reflectivity (albedo) and (b) the earth's average surface temperature?
Calculate the amount of solution (g or mL) that contains each of the following amounts of solute. Express the answer to two sig fiugres and include the appropriate units.
If the volume of solute is 6 ml and the volume of the solution is 300 ml, what is the solute's percent by volume?
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