At what rate would oxygen concentration in the gas within the international space station decrease if the system for the electrolytic generation of oxygen failed? Give your answer as mole fraction per day. How many days would it take after the failure for the oxygen in the ISS to fall to 15% assuming it starts at 21%?

Q: bed 15.0mg of folded Mg ribbon into the eudiometer.     II. Performing the experiment in a different…

A: From ideal gas equation: We know ρv=ngas RT Where ρ=pressure  v=Volume R=Universal Gas constant…

Q: Draw a graph of the expected relationship between hydrogen isotope ratio in summer and rooting…

A: Given:-   Draw a graph of the expected relationship between hydrogen isotopes ratio in summer and…

Q: give five projects that will help to reduce or prevent air pollution

A:

Q: What is the volume of a balloon that has risen to a height of 2 km, where the atmospheric pressure…

A:

Q: Compare and explain the difference between messier 1 compared with messier 56

A: The objective of this question is to explain the difference between messier 1 compared with messier…

Q: It requires  190 kJ/mol to break the chemical bond in  Br2 molecules.  a. What is the longest…

A:

Q: During hydrostatic weighing, technicians must measure, or estimate, which lung parameter?…

A: Hydrostatic weighing is used to measure body fat.

Q: Explain the different mechanisms by which ozone is formed in the troposphere as a pollutant and in…

A: Ozone in the stratosphere protects us from the Sun's harmful ultraviolet rays. However, ozone in the…

Q: b) If a steam reforming line processes methane at a temperature of 725.0°C and a pressure of 12.00…

A: Ideal gas equation is given by, PV=nRT where P is the pressure, V is the volume, n is the number of…

Q: Given that the total concentration of molecules in air decreases with increasing altitude, would you…

A:

Q: Explain the relevance of the 1987 Montreal Protocol and its 2016 Kigali Amendment on regulating…

A: Unlike the Vienna Convention, the Montreal Protocol lays down legally binding and measurable…

Q: 8. Question: Chapter: 1 Lesson: 7 1. Based on Figure F01-7-6, what percentage of the incoming solar…

A: Solution - when we see the diagram, 6% of light is reflected by atmosphere . And 16% is absorbed by…

Q: Challenger

A: The challenger lost its control due to external tank explosion and the space shuttle was destroyed…

Q: 2AB2(g) = A2(g) + 2B2(g)  A 500,0 ml ask is filled with 0,384 mol of AB2. the appearance of A2 is…

A:

Q: Define the term troposphere?

A: To find: The definition of troposphere

Q: HCFCs are a temporary solution to... HCFCs are a temporary solution to the problem of ozone…

A: The question is asking about the class of compounds that will replace Hydrochlorofluorocarbons…

Q: a) Calculate the air concentrations in ug/m³ corresponding to the standards. Detail your…

A:

Q: Summarize and analyze the key chemical principles of the potential dangers of scuba diving.  What…

A: Scuba diving is an exciting and exhilarating experience that takes you to the depths of the…

Q: What mass (in g) of NO2 is contained in a 12.8 L tank at 0.830 atm and 269 K?

A: Ideal gas equation relates pressure (P), volume (V), number of moles (n) and temperature (T). PV=nRT…

Q: Draw a graph of the expected relationship between hydrogen isotope ratio in summer and rooting…

A:

Q: what is the mass of 3 L of ammonia at stp?

A: We have 3L of ammonia gas at STP ,we have to calculate the mass of it.

Q: 2. Which of the two-cloud droplets or raindrops-would you expect to be more effective in scavenging…

A:

Q: The formation of ozone in the stratosphere begins with:   Group of answer choices a UV photon…

A: Applying mechanism of ozone formation.

Q: Calculate the rate of the effusion rate of He-3, given that He-4 rate is 2.92 (unit length/time).…

A:

Q: 20. Gas A has a greater molar mass than gas B. What is true about their rates of effusion? a. Gas A…

A: Rate of effusion is inversely proportional to the molar mass of that component.  Higher the molar…

Q: It’s a bad day in the lab!  Two students are doing experiments.  Each is 20 feet away from the…

A:

Q: If a given power plant released SO2 gas with a volume V of 1200 m^3 at a density p of 2.86 kg/m^3 at…

A:

Q: If gasoline produces only carbon dioxide and water when it burns completely, why is automobile…

A: We have to tell how automobile exhaust a source of air pollution.

Q: QUESTION 11 A certain laser uses a gas mixture made of 1.00 g hydrogen gas, 4.50 g hydrogen…

A:

Q: Compare and contrast the roles of ozone (O3) and nitrogen dioxide (NO2) in the stratosphere and in…

A: Light emitted from the sum resembles that of a 6000 K black body. The intensity of the radiation…

Q: A chemistry lab with 22,000 cubic feet was contaminated with hydrogen sulfide. What will the average…

A:

Q: Given these two statements, which can be concluded? (1) Apart from adverse environmental effects,…

A: The statements given are,

Q: A sample of oxygen gas occupies a volume of 9.60 L at 51.0°C and 358 torr. If the volume of the gas…

A:

Q: 1: Instructions: Write the IUPAC name for each unsaturated hydrocarbons. 1. CH2=CH(CH2)4-CH3 H3C. 2.…

A: While naming any alkyne it is very important to observe the position of triple bond and substitution…

Q: With respect to the chemical compounds involved, describe how smog is caused and what effects it may…

A: Smog is derived from two words –Smoke and fog. Two different types of smog are recognized:…

Q: 3. Name all the functional group/s in the following organic compound. This is the chemical compound…

A: a. The given compound contains -NH-C=O bond, Hence, the functional group present in the given…

Q: People pass, on average, .75 LITERS of gas per day. This is about .0536 g of methane per 24 hour…

A: Methane passed in a day =0.0536 g

Q: Why are CHF2Cl and CH2ClCF3 important for stratospheric ozone depletion? pls consider its lifetime.

A: Life time of CHF2Cl and CH2ClCF3 are 11.9 and 13.4 years respectively.

Q: Atmospheric Carbon Dioxide Concentration Over Time 420 current 380 340 300 1950- 260 220 180 140…

A: Answer :- Carbon dioxide concentration in the atmosphere is higher now than at any other time in…

Q: A temperature inversion of the atmosphere was observed based on the data below as reported by probes…

A: Soln

Q: How are humans connections leading to seas level rise?

A: The rise in sea level is observed because the glaciers and ice caps are melting rapidly/at a faster…

Q: 2. a. Given the following composition, calculate the average molar mass of air. Molar ratio:…

A: Ans2a:To calculate the average molar mass of air, we first need to convert the molar ratios into…

Q: Differentiate between acute and chronic health effects from air pollution.

A: Air pollution is now a days a life-threatening problem. Air pollution arises due to emission of…

Q: The following data is from a prospective cohort study examining the association between air…

A:

Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.