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is the unit mol L-1 s-1 the same as M/s?
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- Nitroglycerine is a shock-sensitive compound that decomposes as follows: 2 C3H5N3O9(l) --> 6 CO2(g) + 3 N2(g) + ½ O2(g) + 5 H2O(g) 10.0 kg of nitroglycerine sits in a 5.0-L cylinder. A chemist, angry that an experiment didn’t work, foolishly kicks the cylinder, thereby inadvertently performing his last and most dramatic experiment. The final temperature of the product mixture is 595 oC. Assume ideal gas behavior and complete decomposition. Calculate the total pressure (atm) in the cylinder the moment before the explosion.0.23 M potassium acetate could be written as 2.3 mmol KC2H3O2/L true or falseA chemist adds 145.0 mL of a 0.00260 mol/L calcium sulfate (CaSO.) solution to a reaction flask. Calculate the millimoles of calcium sulfate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. |mmol x10 ?
- Part A: For calculations involving gaseous systems, it is important to use the kelvin temperature scale. What is the temperature in kelvin if a thermometer reads 221 °C? Part B: If we are given the temperature in Kelvin, we may need to turn this back into Celsius (most thermometers use the Celsius scale). A gas has a temperature of 286 K. What is this temperature in Celsius?O Chemical Reactions Using molarity to find solute moles and solution volume 3/5 A chemist adds 365.0 mL of a 2.07 mol/L sodium chloride (NaCl) solution to a reaction flask. Calculate the millimoles of sodium chloride the chemist has added to the flask. Round your answer to 3 significant digits. mmol X G1.) In the Dumas method for determining the molar mass of an unknown volatile liquid, a sample of a volatile liquid that boils below 100 oC is vaporized in a boiling water bath and the mass of the vapor required to fill the flask is determined. The following data was collected: Flask Volume 100.0 +100.0 + 79.6 mL = 279.6 mL Mass of Flask + Cap 143.85 g Mass of Flask + Condensed Liquid 144.95 g Mass of Condensed Liquid 1.10 g Temperature of Water Bath (oC) 84.1 oC Barometric Pressure (atm) 0.985 atm a.) What is the molar mass of the unknown? b.) What will its temperature be when the pressure is 1.20 atm and the volume is 250.0 mL?
- A mixture of methane (CH₄) and butane (C₄H₁₀) at one atmosphere pressure and 25°C has a density of 1.639 g/L. Assuming ideal behavior, what is the mass in grams of carbon that are in 1 liter of the mixture?Expr 18.6 mol I₂ (s) With three significant digits. Do not include units! A student wanted to fill a small balloon with 1.00 L of H₂(g) at SATP. The hydrogen gas is produced when aluminium metal reacts with hydrochloric acid according to the following reaction: 2 Al(s) + 6 HCl(aq) → 2 AlCl3(aq) + 3 H₂(g) What mass (in g) of aluminium metal is required to react with excess hydrochloric acid to produce 1.00 L of hydrogen gas at SATP? Express your answer with three significant digits. Do not include units! g Al(s) To test the stoichiometry of a reaction, a student placed a copper wire into a solution of silver nitrate. The reaction is F5 DELL F8How many equivalents is 2.1 x 10²³ molecules sulfuric acid?
- In the air we breathe at 74.0 ∘F∘F and 1.09 atmatm pressure, how many molecules does a typical cubic centimeter contain, assuming that the air is all N2N2. N= ---------- molecules11. Radon gas produces radioactive particles and in high concentrations can result in lung cancer in humans. The radon gas level inside a basement is measured at 4.5 × 10ª Curies/cm³. How many picoCuries of radon are present in the room if the room's dimensions are 7.2 m × 8.5 m × 4.0 m?A chemist prepares a solution of nickel(II) chloride NiCl2 by measuring out 97.μmol of nickel(II) chloride into a 150.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's nickel(II) chloride solution. Round your answer to 2 significant digits.