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The CO2 exhaled by astronauts must be removed from the spacecraft atmosphere. One way to do this is with solid LiOH:CO2(g) + 2 LiOH(s) Li2CO3(s) + H2O(l)
The CO2 output of an astronaut is about 1.2 kg/day. What is the minimum mass of LiOH required for a six-day space shuttle flight involving five astronauts?
What is the average mass(in grams) of a flourine atom if Flourine has an atomic weight of 18.998 amu
The density of liquid oxygen at its boiling point is 1.14 {kg/L} , and its heat of vaporization is 213 {kJ/kg} . How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized?
Assuming that no lead was originally present, that all the 206Pb formed over the years has remained in the rock, and that the number of nuclides in intermediate stages of decay between 238U and 206Pb is negligible, calculate the age of the rock.
During a balloon ascension, wearing an oxygen mask, you measure the weight of a calibrated 5.00-kg mass and find that the value of the gravitational field strength at your location is 9.785 N/kg.
Complete and balance the equation for this reaction in acidic solution. MnO4- + HNO2 -> NO3- + MN2+ Which element got oxidized. Which element got reduced. Which Species was the oxidizing agent
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 27.6 g of carbon were burned in the presence of 87.2 g of oxygen, 13.6 g of oxygen remained unreacted. What mass of carbon dioxide was produced?
Vanadium metal crystallizes in a body centerd cubic crystal lattice. The length of a unit is 0.305nm. Calculate the density of vanadium in g/cm^3
You are the Science Officer on the Starship Enterprise and you come across a new planet. You find that no light with wavelength less than about 650 nm reaches the surface of the planet.
Is the world adiabatic or isothermal and why. Is the world at constant pressure or constant volume and why.
Calculate the molar mass (g/mol) of a gas whose root mean square speed is 796 m/s at 512 K.
Identifying dipolar ions, There is a question in my textbook that reads P-amino acid is not a dipolar ion, whereas glycine (aminoacetic acid) is not a dipolar ion- how do you account for this?
The density of a 20.3 M CH3OH (methanol) solution is 0.858 g/mL. What is the molality of this solution. H2O is the solvent.
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