How many moles of water equal to a sample containing 5.0X10^24 molecules? How many moles of water are contained in a glass of water that holds 255 grams? A sample of the hydrate CuSO_4 \cdot 5H_2 O has a mass of 12.5g. (a) How many atoms of hydrogen...
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...
How many moles are in 11.3 grams of {eq}H_2 {/eq}? Molecular Compounds: Water is an example of a molecular compound that exists in terms of discrete molecules. A water molecule contains non-metal atoms known as H and O. These elements are combined by covalent bonds. ...
Avogadro's number relates the number of atoms to the number of moles of a certain element. This can also be used in the context of molecules. A mole of a molecule multiplied by Avogadro's number is the number of molecules it has.
Here we are given the volume of the water in mL (milliliters), and we need to figure out how many molecules are present. We shall go through a...Become a member and unlock all Study Answers Start today. Try it now Create an account...
0.1摩尔,氯气的摩尔质量为71g/mol.
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
If you have 2 moles of a substance, how many particles are there? A. 2 B. 6.02×10²³ C
～How many moles are there in100 grams of sulfur? ( 100 克硫有多少摩尔 ～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，...
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...