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378.3g

You multiply the RMM by the Concentration (mol)

Mass(g)=Concentration(mol)*RMM

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How many atoms are there in 0.582 kg sample of SiO2?

To find the number of atoms in a 0.582 kg sample of SiO2 (silicon dioxide), first calculate the number of moles in the sample. The molar mass of SiO2 is approximately 60.08 g/mol. Thus, 0.582 kg (or 582 g) of SiO2 corresponds to about 9.68 moles. Since each molecule of SiO2 contains 3 atoms (1 silicon and 2 oxygen), the total number of atoms is approximately 9.68 moles × 3 atoms/molecule × 6.022 × 10²³ molecules/mole, resulting in about 1.74 × 10²⁴ atoms.


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What is the interior plains know as?

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Actual level of CO2 in air today?

In May 2013, carbon dioxide levels reached 400 ppm (parts per million). This is 0.04%.There are seasonal changes in levels each year. Highest in May (after the northern winter, when plants are dormant) and lowest in October.See the CO2now link below.Yearly averages:2013 396.482012 393.822011 391.572010 389.782009 387.38 Copenhagen Accord2008 385.592007 383.772006 381.901997 363.71 Kyoto Protocol1992 356.38 Earth Summit in Rio de Janeiro1987 349.16 The last year when the annual CO2 level was less than 350 ppm1959 315.97 The first year with a full year of instrument dataBelow are best estimates:1950 3001900 2901700 280Year 1 2801000 BCE 2803000 BCE 2705000 BCE 2606000 BCE 260Scientists suggest our target should be 350 ppm (parts per million) or less.A:CO2 varies slightly in a yearly cycle, and is also increasing steadily due to anthropogenic (man-made) emissions. Carbon dioxide is a well-mixed gas. This means that it doesn't matter where it is measured, it will show the same value because (on average) it is evenly distributed throughout the globe.A:In 2011 Carbon dioxide is present in the earth's atmosphere at about 385 parts per million by volume or 582 parts per million by mass. It is usually stated in ppm to reduce decimal and "0" confusion. This would be the same as 0.000 385 (by volume) and 0.000 582 (by mass ) as decimal fractions and 0.0385% (by volume) and 0.0582% (by mass) According to the Wikipedia's math this is 3.0×1015 kg (3 000 gigatonnes) of the earth's 5.14×1018 kg (5 140 gigatonnes) total atmosphere.A:This may not sound like much, but it has a powerful greenhouse effect. Considering it would be under 300 ppm without human emissions, this is a considerable upset in the balance of this greenhouse gas, and scientists anticipate earth's climate will continue adjusting to the current level for centuries yet to come. The length of time required for adjustment is known as "climate sensitivity." There are also several free iPhone climate applications such as CliMate Mobile were you can view weekly CO2 data from NOAA reporting stations. This data goes back to 1880 in detail, and more granularly (less precise) many millions of years.______________________________________________________________Historic levels are taken from glacial samples drilled in Antarctica. They show levels varied between 200 and 280 with regular intervals of about 100K years. The most recent glacial samples show levels around 280 ppm.