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249.72 g/mol
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What is the mass of 7 mole of h2o?
To find the mass of 7 moles of water (H₂O), first note that the molar mass of water is approximately 18 grams per mole. Therefore, the mass of 7 moles of water can be calculated by multiplying the number of moles by the molar mass: 7 moles × 18 g/mol = 126 grams. Thus, the mass of 7 moles of H₂O is 126 grams.
Find the mass in grams of 1.54 moles of H2O?
To find the mass of 1.54 moles of H2O, you can use the molar mass of water. The molar mass of H2O is 18.015 grams/mol. Therefore, the mass of 1.54 moles of H2O would be 1.54 moles * 18.015 grams/mol = approximately 27.75 grams.
How do you convert grams to moles using avogadros number?
To convert grams to moles, you divide the given mass in grams by the molar mass of the substance in grams per mole, which is obtained from the periodic table. This calculation gives you the number of moles present. Avogadro's number (6.022 x 10^23) is used to convert moles to individual particles or entities like atoms or molecules.
What is the mass in grams of 9.39 and times1024 molecules of methanol (CH3OH)?
To find the mass of 9.39 × 10²⁴ molecules of methanol (CH₃OH), first determine the number of moles using Avogadro's number (6.022 × 10²³ molecules/mol). Calculate the moles: 9.39 × 10²⁴ molecules ÷ 6.022 × 10²³ molecules/mol ≈ 15.59 moles. The molar mass of methanol is approximately 32.04 g/mol, so the mass is 15.59 moles × 32.04 g/mol ≈ 499.5 grams.
How many grams are in 8.2 x 10 to the 22 molecules of N2I6?
To convert molecules to grams, you need to use the molar mass of the compound. For N2I6, the molar mass is 539.59 g/mol. First, calculate the number of moles in 8.2 x 10^22 molecules by dividing the number of molecules by Avogadro's number. Then, multiply the number of moles by the molar mass to find the grams.
How many moles of water molecules H2O are present in a 27 gram sample of water?
There are 1.5 moles of water molecules in a 27 gram sample of water. This is calculated by dividing the mass of the sample (27 grams) by the molar mass of water (18 grams/mol).
How can you convert from molecules to grams?
Multiply the number of moles by the molecular weight.
What mass of oxygen two moles of O2 molecules have molor mass of O2 is 32 grms per mole?
Two moles of O2 molecules would have a mass of 64 grams (2 moles x 32 grams/mole = 64 grams).
What is the mass in grams of 3.41x10e26 molecules of water?
first you divide by avagadro's number to get the number of moles. 3.41x10^26 / 6.022x10^23 = 566.25 moles The molecular mass of water is 18. moles is mass/molecular weight so moles by the mass is the weight. 566.25*18 is 10192.63g. This is 10.193kg. Are you sure your molecule count was not exponentially lower?
How many moles are there in 235 grams of H2O?
For this you need the atomic (molecular) mass of H2O. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. H2O=18.0 grams235 grams H2O / (18.0 grams) = 13.1 moles H2O
How many moles are in 27.8 grams of water?
To find the number of moles in 27.8 grams of water, you would first calculate the molar mass of water (18.015 g/mol). Then, divide the given mass by the molar mass to get the number of moles. In this case, 27.8 grams divided by 18.015 grams/mol is approximately 1.54 moles of water.
6.00 g water contains how many moles?
For this you need the atomic (molecular) mass of H2O. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. H2O= 18.0 grams.417 grams H2O / (18.0 grams) = .0232 moles H2O
How many grams does 5.60 x 1022 molecules of SiO2?
To find the mass, we divide by Avogadro's number to find the amount of moles. We then multiply the moles by the molar mass of the compound which is 60.08 grams. Doing all of this, we get a mass in grams of 5.59 grams.
What is the mass in grams of 1.64x10 23 molecules of C6H12O6?
To find the mass of 1.64x10^23 molecules of C6H12O6, you need to determine the molar mass of one molecule of C6H12O6. Then, use Avogadro's number (6.022x10^23 molecules/mol) to convert the number of molecules to moles. Finally, multiply the number of moles by the molar mass to get the mass in grams.
Find the mass in grams of 1.54 moles of H2O?
To find the mass of 1.54 moles of H2O, you can use the molar mass of water. The molar mass of H2O is 18.015 grams/mol. Therefore, the mass of 1.54 moles of H2O would be 1.54 moles * 18.015 grams/mol = approximately 27.75 grams.
What is the mass in grams of 1.20x1025 molecules of ammonia NH3?
To find the mass in grams of 1.20x10^25 molecules of ammonia (NH3), you first calculate the molar mass of NH3 (17.031 g/mol). Then, divide the given number of molecules by Avogadro's number (6.022x10^23 molecules/mol) to find the number of moles, and finally, multiply the number of moles by the molar mass to get the mass in grams, which will be approximately 4.08x10^2 grams.
What is the mass in grams of 7.50 and times1020 molecules of caffeine C8H10N4O2?
To calculate the mass in grams of 7.50 x 10^20 molecules of caffeine (C8H10N4O2), you need to determine the molar mass of caffeine and then convert the number of molecules to moles using Avogadro's number. Finally, multiply the moles of caffeine by the molar mass to find the mass in grams.
