Which gas effuses at approximatly one-half that rate
At 25 degrees of NH3 (molar mass 17 grams) effuses at the rate of .50 mole per minute. Under the same conditions, which of the following gas effuses at approximatly one-half that rate?
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You and a friend are having dinner at a restaurant. You order strong, hot tea with lemon, and your friend orders plain hot tea. When your drinks arrive, the waiter apologetically informs you that he has already put the lemon into one of the teapots.
A 245 mL stock solution contains 0.9 M Ca(CN)2. When 105 mL of the stock solution is diluted to 125 mL, how many moles of CN- ions will be contained in the dilute solution?
If 24g Mg is used and the percentage yield is 95%, how many grams of magnesium hydroxide should be recovered?
Find the gram formula mass of each compound.
Ferrocene, a substance used as a gasoline additive but which is also being studied because it shows some anticancer properties, has the percent composition of 5.42%H,64.56% C and 34.02%Fe.
Potassium carbonate was added to the water to prevent freezing during cold weather. If the solution is 40.0% K2CO3 by mass, what is the "ideal" freezing point of this solution in Celsius?
When this mixture is dissolved in 150. g of water, the freezing point is found to be -2.24 degrees C. Calculate the percent by mass of sugar in the original mixture.
Calculate the final temperature of the solution when the CaCl2 has dissolved assuming there is no heat lost to the surroundings, there is no change in the melting point of ice, ΔHfus = 6.02 kJ/mol, and that the solution has a specific heat c
In one city, a balloon with a volume of 6.0 L is filled with air at 101 kPa pressure. The balloon in then taken to a second city at a much higher altitude. At this second city, atmospheric pressure is only 91 kPa. If the temperature is the same in
An elemental has a mass of 10.3 grams. If the volume is 58.4 liters and the pressure is 758torrs at a temperature of 2.5 celsius, what is the gas using the ideal gas laws?
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what modernism was meant to be and what Hughes ultimately accomplished in his poetry. Use excerpts from Hughes's poems to support your analysis
How would you use the You-Viewpoint in a way that is good business communication, since it is ethically shady,
: Dr. Hicks shares some guidance when communicating complex scientific regulations to an audience that she has found successful.
Problem: Is hypercompetitive communication ethical? Explain.
Read the sentences A-H below. Determine the best order and rearrange the sentences to create a well-written paragraph (topic, body, conclusion).
There are a number of systems to analyse qualitative data. Which system allows the data to 'speak for itself', with themes emerging from the discussions
Even within one culture, subgroups may have diverse perceptions. Compare the diverse perceptions that hunters, vegetarians, even political parties might have