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Dexter and Mandark team up in order to prevent theasteroids from destroying Earth. They start this planet savingfeat by weighing a gelatin capsule (0.117 g) Next theyadd pieces of aluminum/zinc alloy to the capsule and weigh thecapsule and alloy (0.200 g). They weigh out an empty beaker(112.600 g) and begin the experiement. After the reaction, theydetermine the mass of the beaker (with the displaced water) to be202.437 g. The temperature of the water was 22 Celsius and thebarometric pressure was 735.8 mm Hg.What is the vapor pressure of the water? What is the pressureof dry hydrogen gas?
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3). How much limestone (in kg) is required to completely neutralize a 4.3 billion liter lake with a pH of 5.5?
Normal fasting levels of blood glucose in human are around 800mg/L. What is the molarity of glucose in the bloodstreem
Calculate the number of mmoles of primary standard grade Na2CO3. b. How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
Given a column of air with a pressure of 1.57 x 10^5 Pa and an area of 1.12 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column
What mass of Sucrose(C12H22O11) should be combined with 456g of water to make a solution with an osmotic pressure of 8.05atm at 280K
k=2,2 . 10^-3 for the following rxn: 2H2S(g)2H2(g) + S2(g) a) calculate the synthesis of one mole of H2S from H2 and S2 gases b) the decomposeosition of one mole of H2S gas
Finely divided sulfur ignites spontaneously in fluorine gas to produce sulfur hexafluoride, as in the following equation S(s) + 3F2(g) --> SF6(g)
A sample of 2.2 mol O2 (Cop,m = 29.355 J K-1 mol-1) is originally confined in 24 dm3 at 270 K and then undergoes adiabatic expansion against a constant pressure of 600 Torr until the volume has increased by a factor of 3.0.
Estimate the viscosity of a liquid mixture composed of methane = 59.30 mole%, propane = 37.46 mole%, and n-octane=3.24 mole% at a temperature of 311 K and pressure
Write the formula for the name or name for the formula of each acid below. (Type your answer using the format copper(II) chloride for CuCl2, and CO2 for CO2.) (a) chloric acid (b) HBrO3 (c) nitrous acid (d) HNO3 (e) hydroiodic acid
Draw the Mechanism of N-Acetylglucosamine hydrolysis. a) under alkaline conditions and b) under acidic conditions
a metal sample weighing 45.0 grams and at a temperature of 99.1 degrees Celsius was placed in 38.6 grams of water in a calorimeter at 25.0 degrees Celsius. The calorimeter reached a maximum temperature of 32.8 degrees Celsius.
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