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To determine the number of molecules in 720 grams of C6H12O6 (glucose), you first need to calculate the number of moles present. The molar mass of glucose is 180.16 g/mol. Dividing 720 grams by the molar mass gives you 4 moles of C6H12O6. One mole of any substance contains Avogadro's number of molecules, which is approximately 6.022 x 10^23. Therefore, 4 moles of C6H12O6 would contain about 2.409 x 10^24 molecules.

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How many hours are in September?

there are 720 hours in the month of September


How many minutes does the sunlight touch the earth surface?

On average, sunlight touches the Earth's surface for about 12 hours each day, which translates to 720 minutes. This duration can vary depending on the season and the latitude of a specific location on Earth.


How many grams are in 1 liter of Gasoline octane?

Last week, Slate published the first installment of the "Green Challenge," a program that helps participants reduce the amount of carbon dioxide they put into the atmosphere. We started by asking people to think about the effects their cars have on the environment: "For each gallon of gas your car burns, it releases about 19 pounds of carbon dioxide." Explainer readers wondered about this statistic: If a gallon of gasoline weighs about 6 pounds, how can it produce three times that much greenhouse gas?The carbon from the gasoline mixes with oxygen from the air. Gasoline consists mostly of hydrocarbons-chains of carbon encircled by atoms of hydrogen. When the hydrocarbons burn, they break apart and recombine with the air. This reaction produces heat, as well as two chemical byproducts: water and carbon dioxide.For example, consider a single molecule of octane-a typical hydrocarbon that you'd find in gasoline. Octane consists of eight atoms of carbon and 18 atoms of hydrogen, written as C8H18. If you break down the octane and mix it with enough oxygen (O2), you've got the ingredients-i.e., the atoms of carbon, hydrogen, and oxygen-to make eight molecules of carbon dioxide (CO2) and nine molecules of water (H2O). The eight molecules of CO2 weigh about three times more than the one molecule of octane you started with. That doesn't mean you've violated the law of conservation of mass; instead, you've added the weight of the oxygen from the air to the weight of the carbon from the gasoline. (For a more in-depth discussion of this reaction,This reaction gives only a general sense of what happens when you burn a gallon of gas. First, the combustion that occurs in a car engine doesn't work perfectly, which means not every hydrocarbon gets converted into carbon dioxide and water vapor. Sometimes there's not enough oxygen available to complete the reaction, in which case hydrocarbons can be converted into poisonous carbon monoxide (CO). Burning gasoline can also release nitrous oxide and other gases.Second, gasoline consists of octane along with many other kinds of hydrocarbons. You'll also find additives like surfactants, freezing-point depressants, corrosion inhibitors, and dyes. These nonhydrocarbon additives might make up half a percent of the total composition of the gasoline. There are also differences between winter and summer blends, low- and high-octane, and leaded and unleaded.Thus, any estimate of the amount of carbon dioxide that comes from a gallon of gas must be based on some assumptions. The Environmental Protection Agency starts with a guess for how many grams of carbon are in each gallon of gas. First, they determine how much carbon is in each particular kind of gasoline, and then they come up with a weighted average based on consumption levels for each variety. Using this method, they estimate that a gallon of gas contains, on average, 2,421 grams of carbon. That's enough to make 8,877 grams of CO2. They multiply that number by 0.99 to account for the carbon that doesn't react fully with the oxygen. Their result: 8,788 grams, or about 19.4 pounds. (The Energy Information Administration gives a slightly higher number-19.564


The sky is blue because air molecules in the sky act as tiny what?

resonators that scatter blue light Answer: A bit of background: The white light from the sun is a mixture of all colours of the spectrum. Each colour of light ahas a wavelengths. The visible part of the spectrum ranges from red light (wavelength =720 nm), to violet (wavelength =380 nm), with orange, yellow, green, blue and indigo between. The human eye reacts most strongly to strongly to red, green and blue wavelengths. This gives us colour vision. The explanation: Light passing through a clear fluid with suspended particles is scattered. Some wavelengths like blue are scattered more strongly. The first person to notice this and experiment with it was John Tyndall in 1859. So he got to mane the effect the Tyndall Effect. He made three important observations: * From the side, (the way we see most of the sunlight in the sky) the beam can be seen by the blue light it scatters * The light seen directly at the end (looking towards the source) is red. This is the way we see the sunlight at sunset* The scattered light is polarized. This is why polarized sun glasses make some parts of the sky seem darker.Some early researchers (Tyndall and Rayleigh) thought that the blue colour of the sky must be due to small particles of dust and droplets of water vapour in the sky. Later scientist discounted this and proposed that oxygen and nitrogen molecules are the cause of the scattering.In 1911 Einstein did the math to prove that the molecules could cause the scattering. Technically the molecules scatter light because the electromagnetic field of the light waves induces electric dipole moments in the O2 and N2 molecules.


The sky is blue because air molecules in the sky act as tiny?

A bit of background: The white light from the sun is a mixture of all colours of the spectrum. Each colour of light ahas a wavelengths. The visible part of the spectrum ranges from red light (wavelength =720 nm), to violet (wavelength =380 nm), with orange, yellow, green, blue and indigo between. The human eye reacts most strongly to strongly to red, green and blue wavelengths. This gives us colour vision. The explanation: Light passing through a clear fluid with suspended particles is scattered. Some wavelengths like blue are scattered more strongly. The first person to notice this and experiment with it was John Tyndall in 1859. So he got to mane the effect the Tyndall Effect. He made three important observations: * From the side, (the way we see most of the sunlight in the sky) the beam can be seen by the blue light it scatters * The light seen directly at the end (looking towards the source) is red. This is the way we see the sunlight at sunset* The scattered light is polarized. This is why polarized sun glasses make some parts of the sky seem darker.Some early researchers (Tyndall and Rayleigh) thought that the blue colour of the sky must be due to small particles of dust and droplets of water vapour in the sky. Later scientist discounted this and proposed that oxygen and nitrogen molecules are the cause of the scattering.In 1911 Einstein did the math to prove that the molecules could cause the scattering. Technically the molecules scatter light because the electromagnetic field of the light waves induces electric dipole moments in the O2 and N2 molecules,