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WebThe calorie is a unit of energy that originated from the obsolete caloric theory of heat. For historical reasons, two main definitions of "calorie" are in wide use. The large calorie, food calorie, dietary calorie, or kilogram calorie was originally defined as the amount of heat needed to raise the temperature of one kilogram of water by one degree Celsius (or one … WebM = 88.1 mole x 94.30 gr]' = 2190.83 g : = 9.9 ģ 30.97 gmol M = 11.9 milk x 51.99 g most! = 618.681 gram n = 9.8 q = 0.25 mol 40.07 goal M = 238-mol x 14.92 g ma! = 17.830.96 gram Molecular weight of a eight of Nal H = Hemic mass of (Na +O+H) - 29.98 + 15.99 +1.00 = 39.97 g/mol Mow of Hyo = 2x1.00 +15.99 217.99 giro Mow of mga2 = 24.30 + 2 … highly contagious disease list
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Web8 jul. 2024 · The Correct answer is 17.98 × 10⁻²³ moles in 15 grams of Lithium. A mole is defined as the amount of a substance that contains exactly the Avogadros number of elementary entities of given substances. Explanation: Molar mass of Lithium is 6.94 g/mol. Given mass of Lithium =15 grams . Avogadro's constant is 6.023×10²³. Given mass … Web14 jun. 2015 · There are 2.16 moles of Lithium in 15 grams. Look at the periodic table to find the molar mass of an element. Molar mass of Lithium is 6.9410 g/mol. Use dimensional analysis: 15g* (1mol/ ( 6.9410g/mol) )=answer. The grams cancel out leaving you with your number in mol units. Multiply it out and you get 2.16 moles of Lithium. Web21 nov. 2024 · There are 2.16 moles of Lithium in 15 grams. Look at the periodic table to find the molar mass of an element. Molar mass of Lithium is 6.9410 g/mol. Use dimensional analysis: 15g* (1mol/ (6.9410g/mol))=answer. The grams cancel out leaving you with your number in mol units. highly contagious virus outbreak