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A sample of molten iron occupies of a volume of 7.11 x 10-3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample? a. 0.000904 g b. 0.0559 g c. 0.904 g d. 1.105 g e. 55.85 g
A sample of nitrogen gas, N2 is collecyed in a 100 mL container at a pressure of 688 mm Hg and a temperature of 565 degress celsius. How many grams of nitrogen gas are present in this sample.
The molar concentration of Tl+ is M (4 dec places). The molar concentration of Cl- is M (4 dec places).
A system absorbs 295 kJ of heat and the surroundings do 177 kJ of work on the system. What is the change in internal energy of the system?
You set off from the bottom of the pile in a space craft that can travel at the speed of light (3.00 x 10^8 m/s). How long, in years, will it take you to reach the top of the pile of pennies? Show all work.
Calculate the volume (in liters) occupied by 2.08 moles of nitric oxide (NO) at 5.84 atm and 76°C.
how many liters of fluoridated drinking water would a 70 kg person have to consume in one day to reach this toxic level? How many kg of sodium floride would be needed to treat a 7.49x10^6 -gal reservior?
Can you show me how to solve this Question? In the following reaction, which reactact is a Bronsted-Lowry Acid?
Write, using correct notation, the balanced nuclear reaction equation for each of the following:a. Electron capture by 93/43 Tc
consider a flask at 298 K with an air pressure of 738 mmHg to which some n-butanol is added. If the measured pressure after the addition is 745 mmHg, what is the vapor pressure of n-butanol at 298 K?
A certain automobile of mass 1920 kg travels on a German autobahn at 120 km/h. What is the wavelength of the automobile?
How many joules of energy are necessary to heat the steam from 100.0C to 114.0C if the specific heat of steam is 2.02 J/ g C
A sample of indium sulfate, In2(SO4)3, contains 0.0446 moles of oxygen. What mass of indium is present?
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