The molar mass of a substance is the mass of one mole of that substance. What is the unit of molar mass? A. g/mol B. mol/g C. L/mol D. mol/L 相关知识点: 试题来源: 解析 A。本题考查摩尔质量的单位。摩尔质量是指单位物质的量的物质所具有的质量,单位是克每摩尔(g/mol)。选项 B...
Molar mass is the mass of one mole of a substance. We determine the molar masses from values on the periodic table. Answer and Explanation: Before we can sum all of the molar mass of the elements in acetic acid we need the chemical formula of acetic acid. Acetic acid's chemical formula...
What is the mass of 0.5142 moles of Zn(BrO4)2? What is the mass, in grams, of exactly one mole of Fe(ClO)3? What is the mass of one mole of hydrogen atoms? What is the mass of 2.6 moles of Ag? Calculate the mass of 0.85 mole of water. What is the mass, in grams, of 1...
Amount of substanceChemical amountMoleNumber of entitiesAvogadro constantAvogadro numberStoicheiometryThe mole is a difficult concept. Surveys have shown that even many teachers do not have a proper understanding of it. To help to meet this problem, the SI/IUPAC formulation of the mole is ...
The word molecule comes from the Latinmoleculameaning a unit of mass. This name was to encompass its original meaning of "the smallest unit of a substance that still retains the properties of that substance." In 1873, James Maxwell defined atom and molecule: "An atom is a body which cannot...
Chlorine Cl 1 97.2%Meet the Mole A mole of a substance is defined as a specific number of atoms or molecules called the "Avogadro number," which is 6.022 × 1023. The number is derived from international agreement, based on the number of atoms in exactly 12 grams (g) of the carbon is...
What is the mass of 1 mole of atoms of Pt?Mole:1 mole is a measurement that is used for the qunatitative measurement of the substance. 1 mole of a particle have 6.022 {eq}\times {/eq} 10{eq}^{23} {/eq} particles (atoms, ions, electrons or molecules)....
It is defined as the change in enthalpy when 1 mole of a substance is formed from a pure element. It is denoted by delta H. It is calculated by the sum of the standard enthalpy formation of product minus enthalpy formation of reactants....
Molarity, also known as molar concentration, is the number ofmoles of a substance per liter of solution. Solutions labeled with the molar concentration are denoted with a capital M. A 1.0 M solution contains 1 mole of solute per liter of solution. ...
<p><strong>Step-by-Step Text Solution:</strong></p><p>1. <strong>Definition of a Mole</strong>: A mole is defined as the amount of a substance that contains exactly \(6.022 \times 10^{23}\) elementary entities of that substance.</p><p>2. <strong>Under