～Per mole of sulfur atom consists of 6.02×1023 sulfur atoms and its qualty is 32 grams, so there are 100/32 moles in100 grams of sulfur. (1 摩尔的硫原子含 6.02×1023 个硫原子，质量为32克，所以 100 克硫中有 100/32 摩尔)...
How many moles are in 31.3 grams of {eq}Cl_2 {/eq}? Grams to Moles: The mass of a substance (m) in grams can be converted into the moles of the substance (n) with the help of the molar mass of the substance (M) as a conversion factor. ...
If you have 2 moles of a substance, how many particles are there? A. 2 B. 6.02×10²³ C
题目16 How many moles of ions are present in 30 cm3 of 0.025 mol dm-3 barium hydroxide SO/ution,Ba(OH)_2(aq) C□ A C0.00075□ B 0.00150口 C 0.00225□D0.00450 相关知识点: 试题来源: 解析 CC is the correct answerBecause 30x0.025/1000x30=0.00225Question Number ...
百度试题 结果1 题目How many moles of Na+ ions are in 20 mL of 0.40 mol/LNa3PO4? ( ) A. 0.0080 B. 0.024 C. 0.050 D. 0.20 相关知识点: 试题来源: 解析 B 反馈 收藏
Log In Sign Up Subjects Science How many moles of Al are there in a sample that contains 15.7 grams of aluminum?Question:How many moles of Al are there in a sample that contains 15.7 grams of aluminum? Number of Moles:The number of moles in a sample can be det...
How many moles of NH3 are there in a 12.50gram sample? Number of Moles of Sample: When the total molar mass of a substance from a table of standard values is represented as M, then we'll divide the number of grams by this value for the total number of moles of the sample. Answ...
35 How many moles of hydrogen chloride are formed when one mole of methane is added to a large excess of chlorine in the dark? A 0 B 1 C 2 D 4 相关知识点: 试题来源: 解析 AAbsence of uv light, so no substitution occurs 反馈 收藏 ...
Reaction: 2Q + 5R → 4S. If 10 moles of R react, how many moles of S are formed? A. 6 B. 8 C. 10 D. 12 相关知识点: 试题来源: 解析 B。5 摩尔 R 生成 4 摩尔 S,10 摩尔 R 生成的 S 的物质的量为 10÷5×4 = 8 摩尔。反馈 收藏 ...
o.4摩尔的二氧化硫有多少粒子?How many molecules are found in 0.4 moles of SO2?Calculate the empirical formula of a compound containing 14.7 g of nickel and 40.0 g of bromine.Show work.就这两个……急求! 答案 请把它翻译过来,这题的化学知识非常简单.但是英文捉急.我在线回答.相关...