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Dana manages to pull a sled, on which Dave is sitting, up a hillside with a grade of 15 degrees. She stops and lets go of the rope when she realizes Dave forgot the hot chocolate! If the combined mass of Dave and the sled is 80 kg, what is the minimum static friction force required to keep Dave from sliding back down the hill?
The vapour pressure of pure ethanol at 20 celsius is 0.0595 bar. Calculate the vapour pressure of 10% by mass of benzoic acid (C7H6O2) in ethanol.
The equilibrium constant Kp for the subsequent equilibrium is 34 at 298K. Explain what is the value of Kc for this same equilibrium at 298K. A(g)+B(g) AB(g)
The mixture had an observed specific rotation of 15.9°. If it is known that the specific rotation of the R enantiomer is -32.5°, determine the percentage of each isomer in the mixture.
Calculate the number or calories of heat energy required for warming 34.6g of water from 18.9 celsius to 29.9 celsius
Predict what you would expect to observe when each of the following substances is mixed with NaI/acetone. Would you expect a difference in their relative rates of reaction
The Molecular Nature of Matter and Change problem 78p I am stuck on the standard heats of reactions. I do not know what those are, but they are crucial for the problem
Acetylene,C2H2 , can be converted to ethane,C2H6 , by a process known as hydrogenation. The reaction is C2H2 + 2H2 --> C2H6 Given the following data, what is the value of K(p) for this reaction?
What is the name of the sticky gelatinous precipitate that is formed in the primary treatment process and carries away suspended dirt particles and bacteria?
Utilizing appropriate examples, Define how the Octet Rule is used in ionic bond formation between Ca and O and covalent bond formation in NF3
Exactly 50.00 mL of an HCI solution required 29.71 Ba(OH)2 to reach an end point the molarity of the HCI. mL of 0.01963 point with bromocresol green indicator.
At a certain temperature the Kp for the decomposition of H2S is 0.867.Initially, only H2S is present at a pressure of 0.284 atm in a closed container. What is the total pressure in the container at equilibrium?
potassiumm chlorate (KClO3) decomposes to form potassium chloride and oxygen gas. if 5.4 moles of potassium chlorate decompose, how many moles of oxygen could be produce.
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