Mass is a measure of the amount of matter in an object. What is the SI unit of mass? A. gram B. kilogram C. pound D. ounce 相关知识点: 试题来源: 解析 B。A 选项 gram 克,不是国际单位制中的基本单位;C 选项 pound 磅和 D 选项 ounce 盎司都是英制单位;B 选项 kilogram 千克是国际...
Question: A mass oscillates with a period of 2.8 s on the end of a spring that has a spring constant of 75 N/m. What is the magnitude of the mass? Spring Constant: In physics, the spring constant is the practical value...
【题目 】感激不敬1. a. What is the marimum mass of KCI that can be dissolred in each 100g of water?If the temperature of the water is 60 C b. a solution is made by dissolving 55g of KN O3 in 100g of water at 60 C.Is this solution saturated,unsaturated,or supersaturated? c...
The SI unit of mass is kilogram (kg) . 1 kilogram is defined as the mass equal to the mass of the international prototyppe of kilogram. Show More | ShareSave Class 11CHEMISTRYSOME BASIC CONCEPTS OF CHEMISTRY Topper's Solved these Questions SOME BASIC CONCEPTS OF CHEMISTRY BOOK - NCERTCHAPT...
1. Mass is a property of a physical body and it is also given as a measure of resistance to acceleration for a body when a net force is applied. In simple words, mass is essentially "how much stuff" is in an object. Kilogram is the SI unit of mas...
M即为molar mass分子质量.这里p=2.39 g/lT需要由摄氏温度转变为开氏温度T=23.0℃=273.15+23℃=296.15KP需要转换为帕斯卡P=715 mm hg=715 /7.5x10^-3=9.533x10^4 paR为常数=8.314,若p用帕(Pa),V用升(L)为单位时,其数值为8315M=61.94 g/mol通过这个问题我也重新学习了下上学时的知识. ...
The rational expression obtained from the ratio of the mass of the metal bar to the volume of the metal bar measured in cubic centimeters known as the density of the metal bar. {eq}\displaystyle \rho=\frac{m}{V} {/eq}, where, m is the mass of the metal. V...
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 ...
How to measure the volume of irregular object? What SI unit is used to measure mechanical energy? What is the weight, in n, of an object with a mass of 200 g? How are the mass and weight of an object related? Which one of the following tools would be most appropriate to measure bo...
The measurement came out to be exactly 3 meters. 3 Measure A reference standard or sample used for the quantitative comparison of properties The standard kilogram is maintained as a measure of mass. Measurement Measurement is the quantification of attributes of an object or event, which can be ...