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Determine the molar mass of each of the following gases: a) 2.90 g of a gas that occupies 0.500 L at 0 degrees C and 1.00 atm (STP); b) 1.43 g of gas that occupies 2.00 L at 0 degrees C and 760 mmHg (STP); c) 0.726 g of a gas that occupies 855 mL at 1.20 atm and 18 degrees C; d ) 2.32 g of a gas that occupies 1.23 L at 685 mmHg and 25 degrees C.
If 1 gallon of paint can cover a square room and ceiling with walls that are 9.36 feet high and 9.36 long, what is the thickness of the paint (in micrometers)?
A 20.0-L nickel container was charged with 0.889 atm of xenon gas and 1.40 atm of fluorine gas at 400 C. the xenon and fluorine reacts to form xenon tetrafluoride. what mass (g) xenon tetrafluoride can be produce assuming 100 % yield? answer in (g..
What is the total sample size (in grams) for a sample of sodium sulfate which contains 3.63 g of oxygen
contains air at a pressure of 171 kPa and a temperature of 293 K. How many moles of air are in it? Also, how many molecules of air does it contain?
What mass of water (in g) would need to evaporate from your skin in order to dissipate 0.8 x 10 5 J of heat from your body?
The zinc within a copper-plated penny will dissolve in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can get to the zinc).
what is the density of a sample of ammonia gas, NH3, if the pressure is .928 atm and the temperature is 63.0 C?
The specific heat of copper is 0.385 J/(g x ?C). If 34.2 g of copper, initially at 25 ?C, absorbs 4.689 kJ
What volume (in milliliters) of 0.240 M NaOH should be added to a 0.125 L solution of 0.029 M glycine hydrochloride
To prevent tank rupture during deep-space travel, an engineering team is studying the effect of temperature on gases confined to small volumes
Calculate Keq for 2 moles of electron(s) in each half-reaction and a standard potential of 0.12 V. Calculate Keq for 2 moles of electron(s) in each half-reaction and a standard potential of (-0.54) V.
What is the molar concentration of sodium hydroxide solution if a titration involved 0.0058 mole NaOH and 31.87 ml of sodium hydroxide.
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