The molar mass and molecular weight of H 20 is 20.159. This program determines the molecular mass of a substance. Enter the molecular formula of the substance. It will calculate the total mass along with the elemental composition and mass of each element in the compound.

One mole contains exactly 6.022 ×10 23 particles (Avogadro's number) Identify the compound: write down the chemical formula of the compound. For example, water is H 2 O, meaning it contains two hydrogen atoms and one oxygen atom. Find atomic masses: look up the atomic masses of each element present in the compound.

Calculate the molar mass of H2O in grams per mole or search for a chemical formula or substance.

H20 molecular weight. Molar mass of H20 = 20.1588 g/mol. Convert grams H20 to moles. or. moles H20 to grams. Molecular weight calculation: 1.00794*20

2019年11月12日 · Water (H 2 O) is made from 2 atoms of hydrogen and 1 atom of oxygen. A mole of water molecules would be 2 moles of hydrogen atoms plus 1 mole of oxygen atoms. From the periodic table we see the atomic weight of hydrogen is 1.0079 and the atomic weight of oxygen is 15.9994. Atomic mass is the number of grams per mole of the element.

Formula in Hill system is H20: Computing molar mass (molar weight) To calculate molar mass of a chemical compound enter its formula and click 'Compute'. In chemical formula you may use: Any chemical element. Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al.

Do a quick conversion: 1 grams H20 = 0.04960612734885 mole using the molecular weight calculator and the molar mass of H20.

There are 4 easy steps to find the molar mass of H2O based on its chemical formula. 1. Count The Number of Each Atom. The first step to finding the molar mass of Water is to count the number of each atom present in a single molecule using the chemical formula, H2O: 2. Find Atomic Mass of Each Element.

一摩尔恰好含有 6.022 ×10 23 个 粒子（阿伏伽德罗数） 识别化合物： 写下该化合物的化学式。 例如，水是H 2 O，这意味着它含有两个氢原子和一个氧原子。 查找原子质量： 查找化合物中存在的每种元素的原子质量。 原子质量通常可在元素周期表中找到，并以原子质量单位 (amu) 给出。 计算每种元素的摩尔质量： 将每种元素的原子质量乘以化合物中该元素的原子数。 将它们加在一起： 将步骤 3 的结果相加即可得到化合物的总摩尔质量。 碳 (C)的原子质量约为12.01 amu。 …

Type the number of Water molecule (H2O) you want to convert in the text box, to see the results in the table.