Chemistry

Chemistry, 20.07.2019 05:30, TVASALLO31

Moles/particles idk how to answer/start

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Chemistry, 24.06.2019 04:00, 19deleonl

Need asap how many particles can be stored in a 4.0 l container at room temperature (23 c) and standard atmospheric pressure (101.3 kpa)? 2.1 moles 0.47 moles 6.1 moles 0.16 moles

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Chemistry, 26.06.2019 16:00, mimi14564

1. the pressure and temperature of a gas are held constant. which of the following is true for the volume of the gas? a.) it is inversely proportional to the number of moles of the gas.b.) it is directly proportional to the number of moles of the gas.c.) it is equal to the number of moles of the gas.d.) it is half of the number of moles of the gas.2. the diagram shows a gas in a container fitted with a movable piston. **picture shown** what will happen if the pressure of the system is raised to 1.5 atmospheres and the temperature remains same? a.) the piston will move upwards because the number of moles of the gas particles will increase.b.) the piston will move downwards because the gas particles will occupy less volume than before.c.) the piston will move upwards because the gas particles will hit the walls of the container with increased force.d.) the piston will move downwards because the gas particles will start moving randomly in all directions, pulling the piston down.

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Chemistry, 25.07.2019 13:00, dzepeda061

98 ! will award extra pls answer the following: make the following calculations of properties of gases a. how many moles of so2 are in 745 l at stp? b. what is the volume of 325 moles of n2? c. what is the density of a gas with a molar mass of 78 g/mole? question 18 determine the following formula masses: a. nh4cl b. nahco3 c. c17h18f3no question 19 how many moles are each of the following? a. 270 g kbr b. 397 g li2so4 question 20 calculate the percent by mass of water in the following compounds a. cocl2.6h2o b. pbcl2. 3h2o question 21 how many particles are there in a. 0.2 moles feso4 b. 1.7 moles ch4 question 22 what is the mass of a. 1.7 moles cabr2 b. 0.48 moles n2o question 23 determine the percent composition for the following a. a compound contains 6.2 g c, 4.1 g h, and 15.9 g o b. a compound contains 1.2 moles c and 3.2 moles h

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