Like if you add a few extra crystals to a supersaturated solution, you immediately see a solid form. But does only the excess solute crystallize to make the solution into a saturated solution or does it all separate making the solution unsaturated?
only the "super" of the "supersaturated’" comes out
only the excess crystalizes out
the solution that remains above the crystals id saturated
This issue is obviously taking the front-page of many a newspaper. Is the solution something that is currently being voted on, some modification of that, or something else entirely? It is obviously a complicated problem that all counties have to address, so there are other examples out there. Should we adopt the system of another country?
What is your solution?
The first step in curing any disease is to diagnose what is wrong. No responsible doctor would just start treating symptoms with no clear idea of what is causing those symptoms. Much less would the doctor continue a treatment that has been shown to make the patient sicker.
In this case, the health care portion of the economy is a text book, poster-child case of the bad things that happen when you eliminate market forces from a portion of the economy and substitute socialism and government intervention. Years ago, before all this began, like in the early 60’s, medical insurance was much less common, and not a necessity. Why? Because under the fee-for-service model, people could generally afford to pay their own doctor and hospital bills, because the prices had not yet gone into the stratosphere. Medical care also did not cost such a large portion of our GNP in those days. Why, just think, we actually had affordable healthcare! It wasn’t perfect, not everybody got the same care, but it also was not a national crisis threatening to bankrupt the country.
The disease began, by some accounts, when employers were able to circumvent WW2 wage and price controls by providing employer paid medical insurance as part of their benefit package. Soon this became so widespread that it became an expected part of employment. But this, along with Medicare and Medicaid in the 1960’s, were big drivers of rising costs of medical care. Essentially, medical care became "free" to large numbers at the point of service, and as with most free goods, the demand grew rapidly. With either the USG or an insurance company picking up the tab, patients cared little what the price was. The USG, once having gotten involved in the medical care industry, tried various different interventions after WW2, becoming a largter and larger player in that market.
Each time government intervened ostensibly to solve the problem, we have ended up with a larger and more intractable problem. Now the USG is on the threshhold of nationalizing the entire industry. It is clear that what is needed is a return to fee-for-service medical care. We need to unwind the skein of socialized medicine that we have been creating for so many decades. Perhaps the intentions were good, but the results have not been good.
One recent step in that direction has been the rise of Health Savings Accounts (HSA), coupled with high deductible health insurance (HDHI). This allows a person to put tax free money into the account, and keep whatever is not spent on medical care. There is a real incentive NOT to buy marginal medical services and to shop for the best price, since the savings accrue to the individual or family. The patient is once again empowered as a customer. In addition, the premiums on the HDHI are lower, so less money flows into the insurance pool and more remains in the hands of the consumer.
There is a pretty good discussion of the history of the subject at the linki provided.
How do the boiling point and freezing point of a solution of water and calcium chloride at standard pressure compare to the boiling point and freezing point of water at standard pressure?
1. Both the freezing point and boiling point of the solution are higher.
2. Both the freezing point and boiling point of the solution are lower.
3. The freezing point of the solution is higher and the boiling point of the solution is lower.
4. The freezing point of the solution is lower and the boiling point of the solution is higher.
4. Freezing is lower and boiling is higher. To illustrate this imagine salt on a road during winter; it melts because the freezing point is now lower! For the boiling point, if you cook, you know to add salt to the water before you boil pasta. Besides flavor, this raises the temperature the water boils at so you can cook your pasta quicker and more evenly.
Please help? What is stronger a diluted strong acid solution or a concentrated weak acid solution?
It depends upon concentrations of both acids…. Generally a diluted stronger acid is stronger as it is strong electrolyte too…. but for that its concentration should be above 10^(-4)
A question for a lab report states this: In this experiment we used a specific heat for the solution that was equal to that of water. How would you expect a salt solution to alter the specific heat of water and why? Think in terms of how the polarity of water influences the nature of water. PLEASE HELP!
As the salt concentration increases in water the specific heat decreases (see graph on first link). For pure water, the specific heat is 1.00 cal/g-C, while for a saturated NaCl solution (brine) the specific heat is 0.786 cal/g-C.
As the amount of NaCl is increased in the solution, the hydrogen bonding structure of water is disturbed. There would be less hydrogen bonding in the salt solution than in pure water. Also, much of the water will be involved with hydrating the ions, insulating them from the rest of the solution by forming a solvent sheath around them. This apparently disrupts the ability of the water to hold heat resulting in a lower heat capacity for the salt solution.
Hope this helps.
Since you get 2 solution in quadratic equations 1 may be obviously wrong. For example, if you were trying to find the number of books, -8 would obviously be wrong because you cann ot have -8 books.
It’s called an extraneous or spurious solution. See here:
http://www.mathwords.com/e/extraneous_solution.htm
Good luck in your studies,
~ Mitch ~
A laboratory employee is mixing a 10% saline solution with 4% saline solution. How much of each solution is needed to make 500 milliliters of a 6% solution?
Any help would be appreciated!
idk?
A solution of malonic acid, H2C3H2O4, was standardized by titration with 0.100M NaOH solution. IF 21.82 mL of NaOH solutions were required to neutralize completely 12.12mL of the malonic acid solution, what is the molarity of the malonic acid solution?
moles OH- = 21.82 x 0.100 / 1000 = 0.00218
Malonic acid has 2 H+ so moles of malonic acid = 0.00218/2 = 0.00109
12.12 mL = 0.01212 L
0.00109 / 0.01212 = 0.0899 M
I am sorry I have confused the issue. I have a ratio of 1:80
I need to know how much solution in millilitres, do I have to add to 3 litres of water to get a ratio of 1:80?
I need to be able to convert it to smaller/larger quantities at time.
assuming what you’re adding to water is 1:80, then it’ll be
3000mL / 80 = 37.5 mL
I have just started wearing monthly contact lenses and was given some solution to clean them and store them in overnight, and I replace the storage solution every day. Using as directed by the optician, I seem to have got through the bottle in about 10 days. Is that normal? Or am I allowed to reuse solution which was storing the already cleaned contacts in? Thanks!
Yup. ITs normal to go through them that quickly.