Correct significant digits please Chapter 5 Question 3 (of 15) 3. 0.66 points 1 out of...
Chapter 11(Gases) Question 21 (of 25) 4.00 points 2 out of 3 attempts Be sure to answer all parts. A mixture of gases contains 0.300 mol CH4,0.250 mol C2H, and 0.280 mol C, Hg. The total pressure is 1.55 atm. Calculate the partial pressures of the gases. (a) CH4 0.56 (b) C2H 0.47 (c) C3Hs 1.14 atm atm atm View Details of Last Check Answer
Question 15 0 out of 3 points A pilot is flying with an air speed of 63.5. Realizing there is a cross-wind, she is adjusting the heading of the plane to compensate. The pilot wants to fly directly north, but the cross-wind is blowing to the east with a speed of 30.4 relative to the ground. At what angle west of north does the pilot need to aim the plane? Find your answer in degrees, but only enter your number...
Question 11 of 15) value 1.00 points 3 attempts left Check my work Enter your answer in the provided box. solution of NaOH. Calculate the pH of a 1.0 x 10M pH= Question 14 (of 15) value: 1.00 points 3 attempts left Check my work Enter your answer in the provided box. Calculate the pH of a solution with a H2O concentration of: 1.8 x 10-6 M
Question 15 (of 15) value: 1.00 points 3 attempts left Check my work Enter your answer in the box provided. Calculate the pH of a 1.0 x 10 M solution of HCI pH =
HM 202-001 HW Chapter 12 Question 3 (of 14) value: 0.00 points 2 attempts left Check my work Enter your answer in the provided box. How many grams of urea I(NH2)2CO] must be added to 495 g of water to give a solution with a vapor pressure 2.41 mmHg less than that of pure water at 30°c? (The vapor pressure of water at 30°C is 31.8 mmHg.) References eBook & Resources Multipart Answer Difficulty: 2 Difficulty: Medium
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Question 1 O out of 10 points Boat A scuba diver is underwater at a depth of 10 m. While looking downward, the diver is oblivious while a 17,552 metric ton boat passes overhead. The boat has a bottom area of 315 m2. What is the additional pressure, in atm, that the diver feels as the boat passes overhead?
Question 10 (of 15) alue: 00 points 3 attempts left Check work my Enter your answer in the provided box. A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.92 x 10 Mand the concentration of sodium propanoate is 1.51 x 10 M. If the buffer equilibrium is described by C2HCOOH(aq) + H,O) H0 (aq) + C2H2COO (aq) propanoic acid propanoate ion with K, 1.34 x 10, calculate the pH of the solution....
3. value 10.00 points 1 out of 3 attempts Enter your answer in the provided box. Find the pH of a buffer that consists of 0.37 M NH3 and 0.12 M NH4CI (pKb of NH3 -4.75)
Question 8 (of 15) value: 1.00 points 3 attempts ten Check my work Enter your answer in the box provided. Calculate the pH of a 1.0 x 10-'M solution of HNO3. pH=1
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Chapter 15, Problem 030 GO A monatomic ideal gas (y = 5/3) is contained within a perfectly insulated cylinder that is fitted with a movable piston. The initial pressure of the gas is 2.10 x 105 Pa. The piston is pushed so as to compress the gas, with the result that the Kelvin temperature doubles. What is the final pressure of the gas? Pp = the tolerance is +/-2% Click if you would like to Show Work for...