If you have 2 moles of a substance, how many particles are there? A. 2 B. 6.02×10²³ C
R. (2015). moles of a substance per cell is a highly informa- tive dosing metric in cell culture. PLoS One 10, e0132572. doi:10.1371/journal.pone.0132572C.M. Doskey, T.J. van `t Erve, B.A. Wagner, G.R. Buettner, Moles of a substance per cell is a highly informative dosing ...
We can use the ratio of reacting volumes of gases to deduce the stoichiometry of a reaction. If we mix 20 cm3 of hydrogen with 10 cm3 of oxygen and explode the mixture, we will find that the gases have exactly reacted together and nohydrogenor oxygen remains. According to Avogadro'shypot...
The molar ratio of substance E to substance F is 3:2. If there are 15 moles of substance E, how many moles of substance F are there? A. 10 moles B. 12 moles C. 15 moles D. 18 moles 相关知识点: 试题来源: 解析 A。因为 E 和 F 的摩尔比是 3:2,E 有 15 摩尔,设 F 有 ...
使用摩尔质量，可以通过以下公式计算物质中含有的摩尔数：摩尔数 = 物质质量 / 摩尔质量。例如，若要计算18.015克水中的摩尔数，计算如下：摩尔数 = 18.015 g / 18.015 g/mol = 1 mol。在您的问题中，您提到了N7H7O8，这看起来可能是一个未知化合物的化学式。在这种情况下，我们需要确定...
How many grams of hydrogen are in 8.2 moles of glucose? Molar Mass: The mass of one mole of a substance is known as the molar mass. As such, it is used to bridge the mass in grams and moles of substance in stoichiometric calculations. The molar mass is also known as the formula mas...
If you had 6 grams of CH4, how many moles would this be? If I have 0.21 grams of KHP, how many moles is that? Suppose the mass of one mole of a substance is 45.0 g. How many moles of the substance is present in 0.568 g of the sample?
The Avogadro's number can be used to calculate the number of moles of a substance. Given the amount of atoms, ions, molecules or particles, the Avogadro's number serves as a conversion factor to determine number of moles.Answer and Explanation: ...
12 Deduce the formula of aluminium oxide. Ions present: Al3+ and O2–. For electrical neutrality, we need three O2– ions for every two Al3+ ions. (3 × 2−) + (2 × 3+) = 0 So the formula is Al2O3. The formula of a covalent compound is deduced from the number of electr...
A mole of a substance does not depend on the volume of the solution but it depends on the molar mass of the substance. 1 mole of a substance is equal...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts ca...