moles =Hydrogen gas has a density of 0.090 g/L, and at normal pressure and 2.49 °C one mole of it takes up 22.4 L. How would you calculate the moles in 160. g ofhydrogen gas?Set the math up. But don't do any of it. Just leave your answer as a math expression.Also, be sure your answer includes all the correct unit symbols.பபоG0.0

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Answered: moles = Hydrogen gas has a density of…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section: Chapter Questions

Problem 127QRT

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Suppose that you are closing a cabin in the north woods for the winter and you do not want the water in the toilet tank to freeze. You know that the temperature might get as low as 30. C, and you want to protect about 4.0 L water in the toilet tank from freezing. Calculate the volume of ethylene glycol (density = 1.113 g/mL; molar mass = 62.1 g/mol) you should add to the 4.0 L water.
Hydrogen gas has a density of 0.090 g/L, and at normal pressure and - 2.78 °C one mole of it takes up 22.4 L. How would you calculate the moles in 990. g of hydrogen gas? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. moles = x10 degreenobox
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?
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11. To prepare for her college entrance exam, Jiheon is studying stoichiometry and tries to calculate the grams of copper (I) oxide that can be produced from 5.00g oxygen gas. Help her finish the solution to the problem. Oz(g) -> Cu2O(s) + SO2@) mol 02 Cu2S(s) 5. 00g 02 x X ... 32.0 g 02 143.09 g Cu20 RSK. 2 mol Cu20 2 mol Cu,0 143.09 g Cu20 KRS. 3 mol 02 3 mol Cu20 mol Cu20 159.16 g Cu20 X mol Cu20 RKS. 2 mol 02 3 mol Cu2S 2 mol 02 159.16 g Cu2S X mol Cu2S SKR.
A cylinder with a movable piston contains 2.00 gg of helium, HeHe, at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2.00 LL to 3.50 LL ? (The temperature was held constant.) Express your answer with the appropriate units.
Can you help me with the number 2 question? Can you explain step by step including the formula too? I need to plug in the fraction.
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 G
Please help with question d
Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H₂O). Suppose 70. g of hydrobromic acid is mixed with 47.1 g of sodium hydroxide. Calculate the minimum mass of hydrobromic acid that could be left over by the chemical reaction. Round your answer to 2 significant digits. 0. 0.P X 2
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