1.72g of HCl is 1.72g / 36.5g/mol=0.047mol 3.40g of SO2 is 3.40g / 64g/mol=0.053mol 1dm^3=1L 1dm3 结果一 题目 calculate the number of moles present in 1.72g of hcl 3.40g of so22.how many moles in each of the following solutions.1dm3 of 1MHCL 答案 1.72g of HCl is 1...
solution? Moles and Molarity:Molarity means concentration. Thus, the molarity of a solution gives the number of moles in the solute per volume or per liter of the solution. It is calculated by dividing the number of moles by the volume of the solution.Answer...
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
Answer to: If I have 50 mL of lead (II) nitrate, calculate how many moles are in 1 mL of the substance. By signing up, you'll get thousands of...
题目 举报 求有多少摩尔 How many moles ofchlorine are presesnt in 7.1g of chlorine 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 0.1摩尔,氯气的摩尔质量为71g/mol. 解析看不懂?免费查看同类题视频解析查看解答 更多答案(1) ...
cExplanation: The balanced reaction tells us that for every 2 moles of , it will need 1 mole of for the reaction to proceed to completion. In other words, the mole ratio is 2: 1 . In the example, the student only used 1 mole of . Because of the 2:1 ratio, this amount of will...
While molarity is usually a convenient way to talk about concentration, sometimes there aren't actually that many moles in the solution. What does that mean? Well, say you have a 0.001 M solution of NaOH. It can be kind of annoying to say 0.001 M. Instead, scientists will move the deci...
How many moles of {eq}\rm Al {/eq} are there in a sample that contains {eq}15.7 {/eq} grams of aluminum? Number of Moles: The number of moles in a sample can be determined using the following g formula if we know the mass of the substance present: ...
moles of water in one drop = 0.002775 moles Using Avogrado's Number Finally, useAvogadro's numberto determine the number of molecules in a drop of water. Avogadro's number tells us there are 6.022 x 1023molecules of water per mole of water. So, next we calculate how many molecules there...
Calculate the molarity of 29.0 grams of ethanol (C2H5OH) in 545 mL of solution. How many grams of chromium (II) permanganate are needed to make 763.0 mL of a 3.213 x 10-1 M solution? How many moles of KMnO_4 are present in 300 mL of a 4.90 times 10^{-...