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 are in a drop of water, which we determined contains 0.002775 moles:...
百度试题 结果1 题目In one mole of a solution with a mole fraction of 0.5 water, how many water molecules would there be? A. 0.5NA B. 1.0NA C. 0.25NA D. 2.0NA 相关知识点: 试题来源: 解析 A
Most of the body's water is in the intracellular fluid (2/3 of the body's water). The other third is in the extracellular fluid (1/3 of the water).6 The amount of water varies, depending on the organ. Much of the water is inblood plasma(20% of the body's total).6According to...
1 mL of water = 1 gramAvogadro's Number:The Avogadro's number is the number of particles (molecules or atoms or ions or even photons) that are contained in one mole of a substance. It is equal to {eq}6.023 \times 10^{23}\;\text{p...
导越改用量信即率保进技相拉 How many molecules of CO2 are produced per mole of acetyl CoA in TCA c
How many moles are in 34.5 grams of KCl? The Mole Concept: The mole concept is used by chemists to group large numbers of particles. One mole of any substance contains exactly the same number of particles as Avogadro's number. However, the masses of one mole of two different substances ...
Molecules are extremely small. Much of the air is composed of Nitrogen and Oxygen but there is also Argon, Carbon Dioxide, Water Vapor and many other trace gases. The number of molecules in Earth’s atmosphere must be incredibly large. This writing aims to estimate the amount of air molecule...
Elemental S reacts with O_2 to form SO_3 according to the reaction: 2 S + 3 O_2 to 2SO_3 A) How many O_2 molecules are needed to react with 4.24 g of S? B) What is the theoretical yield of SO_3...
Given the equation 2Mg + O2 --> 2MgO, how many moles of MgO are produced for every mole of O2 used up? In the acetylene torch, acetylene gas (C_2H_2) burns in oxygen to produce carbon dioxide and water. 2C_2H_2(g)+5O_2(g) \to 4CO_2(g)+2H_2O(g) How ma...
After the revision of the International System of Units (SI), the mole (the SI unit of amount of substance) is based on a fixed number of specified entities. This number is the fixed numerical value of the Avogadro constant N-A. Experiments for the practical realization of the mole on a...