0
During the cooling of the fired crucible water condensed on The Crucible wall before its mass measurement Will the reported percent water in the hydrated salt be reported too high or too low?
Wiki User
∙ 9y ago
The percent of water is determined by the loss is mass after heating the water vapor condensed on the crucible wall before heating.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
Wie man seine Figur ohne Folgen für den Körper zu Hause wiederherstellt?
The 8 Best Ways to Get 6-Pack Abs Fast Do More Cardio. Share on Pinterest. Exercise Your Abdominal Muscles. The rectus abdominis is the long muscle that extends vertically along the length of your abdomen. Increase Your Protein Intake. Try High-Intensity Interval Training. Stay Hydrated. Stop Eating Processed Food. Cut Back on Refined Carbs. Fill up on Fiber. bio.fm/martynenkomikhail (just paste the highlighted link into the address bar of your browser, this is a link to the blog where you will find promotional goods) hurry while the PROMOTIONS are valid !!!
How do opera singers carry notes that seem to last forever?
Short answer: Breath control.Opera singers carry notes that seem to last forever using several techniques.First: learn Yoga style breathing. You may have heard to breath in by pushing in your diaphragm as you breathe out, and pushing your diaphragm as far out as you can when you breathe in. That is true. That is how you exchange 50% of the air in your lungs.With Yoga breathing, you not only throw your diaphragm all the way out to breathe in, but you also expand your chest muscles to get more air in your chest. (That is a lot of muscle in a prima donna's chest.)When you breathe out, you not only push your diaphragm in, but you also push it up as far into your chest as possible. You also make your chest muscles as tight as possible.Second. There are places in your mouth where you have natural amplification points. Those places are called fromats. A soprano has three, an alto and tenor four, and a bass five. Opera singers do not need to sing much louder than a whisper. They use the fromats or amplification points. Thus, their 'voice machines' do not get sore where other peoples would. They do not gasp for air when normal people would.Many opera singers use their own techniques, such as standing on their tiptoes before singing. This kind of stress on the calves also makes the other muscles work harder, especially the diaphragm. Some voice coaches will make their trainees squeeze a quarter between their buttocks when they sing. When you squeeze the gluteals, your body also contracts the other muscles in your body. There are ways to improve the function of your diaphragm.Of course, there are other ways. Stay hydrated by drinking water instead of other kinds of fluids. Warm up before singing for at least ten minutes. Do not yell or scream when you are off the stage, but try to save your voice, and definitely do not whisper. Whispering scratches up your throat.Oh, and always mark in your music where you are going to breathe. If you do not mark it, you will not remember to breathe until it is too late or you will breathe too early and not make it through the note.
How do you ensure all water is removed from hydrated copper sulfate?
Heat it in a crucible to a high temperature (well above the boiling point of water). Hydrated copper sulfate is blue in color; when it turns white you will know that the water has been driven out.
How do you calculate the formula of hydrated Barium Chloride given that a sample of 10g of BaCl2.nH2O crystals lost 1.475g of of water on heating?
Mass of BaCl2 = crucible + lid + BaCl2.nH2O - empty crucible + lidMass of water contained in hydrated BaCl2: Initial mass - final massNo. of moles of H2O in hydrated salt = No. of moles = mass of H2O/formula mass of H2O Use this answer in ratioNo. of moles of BaCl2 in 3.399 g = No. of moles = mass of BaCl2/formula mass of BaCl2 Use this answer in ratioThe ratio of BaCl2 to H2O is 1 : 2
How does weed water help in your body?
hydrated
What are the procedures on how to separate copper II sulfate from pentahydrate?
Thoroughly heat your crucible and allow it to cool on the clay triangle. Then weigh your crucible. This ensures that it is clean and dry.Obtain about 1 g of CuSO4·5H2O in your crucible and weigh it, recording the mass to the maximum available precision.Make a prediction about the amount of mass that will be lost when you heat the sample of copper (II) sulfate pentahydrate. Specifically, calculate the mass of the anhydrous salt and the mass of water that will be driven off. Show this to your instructor before proceeding.Once you have your instructor's approval, place the crucible containing the CuSO4·5H2O on the clay triangle.Light the bunsen burner and adjust for a hot flame.Heat the crucible as gently as possible with the burner by moving the burner under the crucible for a few seconds at a time. Note the release of any steam from the crucible.Remove the heat source and use a pair of lab spatulas to occasionally stir the copper sulfate. Carefully scrape all of it back into the crucible. Be careful not to do this while heating!Continue heating gently until the salt turns completely white. Be careful not to overheat! The heat can become so intense that the sulfate in the salt begins to break down. If this happens the salt will turn yellow and produce a sulfurous smell. It will also ruin your data since it will reduce the mass more than expected due to the decomposition of the salt.Stop heating when the salt has lost all traces of blue color. Allow the crucible and its contents to cool completely.Once the crucible is cool, find its mass. Then stir the copper(II) sulfate and heat the crucible and its contents again for a short time. Then allow it to cool and weigh it. If the mass is the same as the previous weighing, then the salt has been completely dehydrated. If not, repeat the heating/cooling/weighing process until two successive weighings have the same mass.Record the final mass of the anhydrous salt in you lab notebook and do the calculations to show that the molar ratio of water to anhydrous salt really is 5:1.Empty the anhydrous salt onto a large watch glass. Use the dropper to add a very little water to the anhydrous copper (II) sulfate. Describe what happens in your lab notebook. For your report think about what is happening at the molecular level when you add water. Draw a model.When you finished this part of the lab empty the re-hydrated CuSO4·5H2O into the beaker provided by your instructor for this purpose. Then begin Part II.Part IIIn this part of the lab you will repeat the same procedure performed for the salt of known formula with a salt for which you do not know the hydrate formula. The salt is magnesium sulfate (MgSO4). Your correct identification of the hydrate formula is worth 5 points on your lab report. To ensure better chances of getting the correct result you may want to consider doing at least two (and perhaps three) trials. For each trial use a minimum of 2 g. The magnesium sulfate is not nearly so hazardous as the copper (II) sulfate and a larger amount will help to reduce errors due to small lab balance inaccuracies. An additional challenge is that both the hydrate and anhydrous salt are white. Finally, unless you frequently stop heating to stir the crystals they will combine and harden, possibly trapping water inside.By the way, magnesium sulfate is the chemical name for Epsom Salts. Epsom Salts were discovered by a farmer in Epsom, England. Every day his cows waded through water containing naturally high amounts of magnesium sulfate. He found that the cows showed evidence of diarrhea but also that the incidence of small wounds near their hooves was reduced. Epsom Salts are used as a laxative and in foot soaks and bath salts. It soothes tired muscles and can help to heal skin problems, including acne.
What is hydrated yeast?
what dose hydrated yeast mean
Is hydrated silica inorganic?
Hydrated silica is an inorganic material.
What is the Dictionary meaning of hydrated?
hydrated: combined chemically with water
How do you spell hydrated?
That is the correct spelling of the word hydrated.
Formula for hydrated copper 2 chloride?
Hydrated copper(II) Chloride - CuCl2.5H2O
Why is common salt called hydrated salts?
Sodium chloride (NaCl) is not a hydrated salt.
Why is common salt called hydrated salt?
Sodium chloride (NaCl) is not a hydrated salt.
Why does your brain need to be kept hydrated?
X-A brain needs to be hydrated because you don't need water and your body is healthy and if your hydrated then you won't be fit enough.-X
