Which of the following is not a method for representing the composition of natural gas.( ) A. Mole fraction B. Volume ratio C. Volume fraction D. Mass fraction 点击查看答案 你可能感兴趣的试题 单项选择题目前中国允许使用的食品添加剂类别有 种。 A、22 B、23 C、24 D、25 点击查看答案 多项...
The solution is made with a solute that has a molar mass equal to 338 g/mol. What is the molarity of the solution? The molality of an unknown aqueous solution was found to be 3.50 m. What is the mole fraction of water in this solution? An aqueous...
Reply to Steve Case May 19, 2024 4:16 pm Emily Litella https://youtu.be/fZLeaSWY37I 2 Clyde Spencer Reply to Steve Case May 19, 2024 1:31 pm You provide the current concentration in parts per mole fraction; however, the GWP is based on an equal weight of CO2. The t...
number. One mole is equal to 6.02 X 10^23. A gram is a unit of mass. One mole of something can weigh 1 gram or 1,000,000 grams, but that mole will be a countable number equal to 6.02 X 10^23. https://study.com/academy/lesson/avogardos-number-using-the-mole-to-count-atoms....
The initial mass of protein and RNA was defined by their masses at cell division multiplied by the measured volume fraction of the mother-cell compartment relative to the whole cell at that time point. For the lipid and polysaccharide initial masses, the cell-surface-area fraction of the ...
Mole Fraction:Mole fraction of a component in a solution describes the number of moles of the component present in the total number of moles of all the components present in the solution. x=ni∑niAnswer and Explanation: We are given: Mass of ethan...
-273.15 o c, 0 o c is equal to 273.15 kelvins. the kelvin scale is used for very low or very high temperatures when water is not involved. the kelvin scale of heat measurement differs from the centigrade and fahrenheit scales in that it starts from absolute zero, the lowest possible ...
the heat energy produced is often used in thermodynamics to improve the system’s energy or to do some useful work. the energy associated with an open system is called enthalpy, which is often greater than or equal to internal energy. to know more about a difference between enthalpy and ...
which is equal to 1. it is also known as unit factors. it is used to convert the units between the same system, as well as the conversion between the metric and the english systems. it is based on the concept of equivalent values. similarly, a conversion factor is defined as a number...
If 10.0 L of oxygen at STP is heated to 512 degrees Celsius, what will be the new volume of the gas if the pressure is also increased to 1520 mmHg? A student has 19.0 g of oxygen gas in a 12.3 L container. He measures the pressure of the gas and...