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You are given an open-ended mercury manometer and asked to determine the pressure in a pipleline that supplies feed gas to a reactor. However, when you connect the manometer to the pipeline, you noticed that the calibration markings in the leg that connects to the pipeline are faded and no readable. You need to improvise.
a) With the manometer still connected, you turn off the gas flow and use a bourdon gauge to measure the pressure in the pipeline at several positions. Would you expect any difference between the gauge readings? Briefly justify your answer.
b) With no gas flowing, the bourdon gauge reading is 6.2 psi and the mercury level in the open leg is 800 mm above the base of the manometer. What should be the corresponding height of mercury in the manometer leg connected to the pipeline?
c) Now you turn back the gas flow and observe that the manometer level in the open leg increased by 30 mm. What is the gauge pressure in the gas pipeline?
A gas mixture is made by combining 8.1 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 19.20 L. What is the molar mass of the unknown gas?
A 265 mL stock solution contains 2.3 M Ca(CN)2. When 105 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution?
the following vibrational levels in the upper electronic state of I2: A) between v=1 and v= 0: b) between v=4 and v=3; and between v=21 and v=20. comment on and explain this trend in terms of the quantum mechanical concept of constraint.
phenol (respectively pKa 4.75 and 9.95), What is the principle species present at pH values 3, 5, 7, and 11?
It would be greatly appreciated if someone can help me out with this question, explaining to me step by step how I can do this. What is the pH of a solution made by adding 8.80 grams of sodium acetate CH3COONa to 450 mL of 0.105 M hydrochloric acid
An unknown compound has the empirical formula CH2. A 0.050-mol sample of this compound weighs 4.20 g. What is the molecular formula of this compound?
Describe at least 4 methods that could be used to attempt to separate the oil and water at home. Based on the four methods postulate which method would work better than the others.
what is the pH of the mixture without considering the ionic strength effect? Sulfathiazole reacts in part with NaOH to give sodium sulfathiazole. The pKa of sulfathiazole is 7.12.
What is the hydrogen ion concentration of a solution when 2.334ml of acetic acid (60.05 g/mole) and 2.082 grams of sodium acetate (82.04 g/mole) are added to 500ml of water?
It has a pressure of 46.3 mmHg and 24.6 C (degrees). what is the molecular formula og the compound
solvents in addition to acetone could be used for extracting plant photosynthetic pigments
The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.60 mL of a 0.330 M HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
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