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40 grams ofNaOHin 1000 mL of water equals how many equivalent(s) ofOH−? a. 23 b. 17 c. 3 d. 1 e. 40 Equivalents: For bases as well as acids, the count of moles of hydroxide or hydronium ion liberated upon dissolution is called equivalents. It is calculated...
How many grams of NaOH are needed to prepare 0.375 L of a 0.600 M NaOH solution? How many grams of NaOH are needed to make 600 mL of a 1.2 M NaOH solution? How many grams of NaOH are needed to make 670 mL of a 0.53 M NaOH solution? How many grams of NaOH are ne...
Log In Sign Up Subjects Science Chemistry Molar mass How many moles of H2 are in a beaker of 60 mL of HCl?Question:How many moles of H2 are in a beaker of 60 mL of HCl? Mole:The mole in a substance can find out from the molar mass of that substance. Different substances ...
How many mL of 0.1 N NaOH are required to react with 100 mEq of H2SO4? Equivalence Point: Suppose we have a strong acid and strong base with number of moles n1 and n2 respectively. The number of moles of both acid and base will be zero after the equivalence point a...
To determine how many grams of the excess reactant will remain after the reaction of 12.5 g of CaO and 75.0 g of HClO4, we can follow these steps:Step 1: Write the balanced chemical equation The balanced reaction between calciu
Different nanoparticles with large specific surface areas and high electronic transmission capabili- ties were used to modify electrode surfaces and to increase the sensitivity and linear range of "label-free" elec- trochemical immunosensors, and this approach has been reported many times11,12. ...
虽然这些行为与环境条件有密切关系，如光照长短等，但植物学家一直认为生物钟是植物感知外界条件的决定因素。要鉴定生理节律的生物钟基因，通常有两个关键问题：第一，生理节律能否被检测到；第二，需找到这种生理节律的异步个体。植物光合作用节律常规方法是难以检测的，史蒂夫·凯领导的研究小组借助萤火虫的发光基因，...
于是，体育商品热销，健身房爆满，各式各样的健身器材成为人们生活中的新伴侣。人们把追求健康作为时尚，对我国经济和产业产生重大影响。以下观点正确的是 ①将带动体育器材制造行业较快发展 ②有利于提高劳动者的身体素质 ③体现了消费对生产的反作用 ④ 体现了我国的消费结构发生了很大变化 ...