When a gas is turned into a liquid, the process is called? What is latent heat of vaporization of water? Is the latent heat of vaporization of water used for the boiling and evaporation process? What is the concentration of water vapor?
A solution contains 20.0 g acetic acid ,CH3COOH, in 250 g water . What is the concentration of the solution expressed as (1) mole fraction of CH3COOH and H2O (2) molality? 相关知识点: 试题来源: 解析 解:(1) x (H2O) = 1 – 0.023 = 0.977 (2 ) 反馈 收藏 ...
What is the concentration of water? How do you calculate concentration in titration? What is a distribution ratio in analytical chemistry? What is volumetric titration? What does K stand for in analytical chemistry? What is the concentration of [oh] in a solution of 0.5 m hcl?
What is the concentration of water? What volume of water would have a mass equal to the mass of air in the room? How many moles of water are there in 1.000 l at stp? Assume the density of water is 1000 kg/m3? An empty container has a mass of 62.000 grams. You fill it with 24....
1.The salt water is made up with 25 grams salt and 100 grams of water.What is the percentage of salt?How many garms of salt in the 200 grams of salt water?2..There are 500 grams salt water,of 3.2% concentration.In order to change it into 8% concentration,How much water does we ...
If water is heated to 80∘C ApH will increase BpH will decrease CpH remains 7.0 DH+ ion concentration will increase but OH− ion concentration will decreaseSubmit Question 3 - Select One The pH of water at 25∘ c is 7. When it is heated to 100∘C, the PH of water - A...
pH of water is 7.0 at 25∘C. If water is heated to 80∘C ApH will increase BpH will decrease CpH remains 7.0 DH+ ion concentration will increase but OH− ion concentration will decreaseSubmit Question 3 - Select One If a+b+c=0, then what is the value of (a+b−c)3+(c+...
aTuesday ,July 16th 星期二, 7月16日[translate] aBut these all are happyness 但这所有是happyness[translate] a它的感觉是怎样的? How is its feeling?[translate] aWhat is the established concentration range as defined by the procedure? 建立的集中范围是多少如是由做法定义的?[translate]...
A pH is the concentration of ${H^ + }$ ions in any aqueous solution.Complete answer:Neutral species or solutions always have a pH equal to $7$ as it is not acidic or basic in nature. When we talk of water it generally has a pH of $7$, since it is not acidic or basic in ...
What is the molarity of a solution made by dissolving 26.42 g of (NH4) 2 SO4 in enough water to make 50 mL of solution? What is the concentration of an HCl solution if 25.0 mL of the solution is neutralized completely by 40.0 m...