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You can calculate the molar mass of a molecule by summing the molar masses of the composing atoms with the help of the periodic table. Use this grams to moles calculator whenever you want to know the number of moles of a substance with a specific mass.
Do a quick conversion: 1 grams Oxygen = 0.062502343837894 mole using the molecular weight calculator and the molar mass of O.
This free moles to grams calculator can instantly convert moles to grams and determine how many atoms/molecules are present in these grams.
If you go three significant figures, it's 26.7. 26.7 grams of oxygen, of molecular oxygen. And so we've answered the first part of the question. What mass of oxygen is required for complete reaction?
- 12 min
- Sal Khan
- The chemical formula for glucose is C6H12O6, which means for every molecule of glucose we'll have six oxygen atoms. Or in other words they will be...
- If we completely consume all the oxygen gas in the reaction, then we will have produced the maximum amount of products; carbon dioxide and water. S...
- Each oxygen atom fulfills its octet by bonding with another. Oxygen is part of the special group of elements whose atom's bond to each other called...
- Look at the coefficients in the balanced equation, you get 6 moles of CO2 per 1 mole of glucose
- Yes you are correct, Sal should not have rounded prematurely like that for the moles of glucose and should have rounded only at his final answer. S...
- He wasn't multiplying by moles of O2. He was multiplying by moles of CO2 and H2O, respectively. They have the same value because 6 moles of O2 and...
- When Sal converts the mass of glucose to moles of glucose using its molar mass, he gets 0.139 mols. Glucose is related to the other chemicals by a...
- You should be familiar with significant figures when doing scientific calculations. There’s a video on KA about them: https://www.khanacademy.org/m...
- When Sal is using the moles of the chemicals for 11:11, he is using the coefficients of the balanced chemical equation at the top. When he says the...
- Look at what the question is asking, it wants the mass of oxygen required. moles x molar mass = mass
Do a quick conversion: 1 moles Oxygen = 15.9994 gram using the molecular weight calculator and the molar mass of O. Check the chart for more details.
Jul 22, 2022 · Generalizing this definition, the molar mass of any substance in grams per mole is numerically equal to the mass of that substance expressed in atomic mass units. For example, the atomic mass of an oxygen atom is 16.00 amu; that means the molar mass of an oxygen atom is 16.00 g/mol.
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The molar mass of a substance is the mass in grams of 1 mole of the substance. As shown in this video, we can obtain a substance's molar mass by summing the molar masses of its component atoms. We can then use the calculated molar mass to convert between mass and number of moles of the substance.
- 6 min
- Sal Khan
