How many bugs will you collect in five minutes
Imagine you are driving at speed 60 mph through air filled with bugs at concentration 1 per cubic meter. The windshield is a flat panel of area 2 m^2, perpendicular to the ground. How many bugs will you collect in 5 min?
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Calculate the pH during the titration of 20.00 mL of 0.1000 M HCOOH(aq) with 0.1000 M NaOH(aq) after 20.22 mL of the base have been added. Ka of formic acid = 1.8 x 10-4.
Predict the product(s) and write a balanced equation for the following redox reaction: 1. Phosphorous trichloride + chorine
Use the appropriate values of Ksp and Kf to find the equilibrium constant for the following reaction: FeS(s)+6CN^-(aq)-><-Fe(CN)6^4-(aq)+S^2-(aq)
Which of the following terms would be used in a description of the mechanism of this reaction: a. tertiary carbanion b. 2-methylpentoxonium ion Torn between the two
When a 2.00-g sample of KSCN is dissolved in water in a calorimeter that has a total heat capacity of 1.717 kJ/K, the temperature decreases by 0.290 K. Calculate the molar heat of solution of KSCN.
What compounds will be present after chemical reaction has occurred. Write out a balanced chemical reaction for this description, and name all compounds present.
Question: A bag contains ten counters, of which six are red and four are green. A count is chosen at random; its colour is noted and it is replaced in the bag. A sound counter is then chosen at random. Find the probabilities that:
All the following are postulates of the kinetic molecular theory of gases except A) the collisions between molecules are elastic. B) the gas molecules move randomly in straight lines in all directions.
(a) How many grams of Na2SO4 are there in 15 mL of 0.50 M Na2SO4? (b) How many milliliters of 0.50 M Na2SO4 solution are needed to provide 0.038 mol of this salt?
1. Find the pH of a solution that has a concentration of hydrochloric acid equal to 0.001 M. 2. Find the normal pH of rainfall (not acid rain). Would a rain sample with a pH of 5.0 be considered "acid rain"
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