What is the Molarity of water?
I am kinda confused about this one!
Answer:
Molarity is defined as moles of solute per liter of solution. To answer this question, you have to calculate the number of moles of water in one liter, assuming that the solution is water dissolved in itself. 1 liter of water weighs 1 kg, or 1000 g. The molecular weight of water is about 18g/mol.
Therefore:
1 mol/18g x 1000g/L = 55.6 mol/l or 55.6M
55.5!
Let water be called W.
1000gW/1LW x 1molW/18gW = 55.6 (rounding up!)
You usually express the concentration of a SOLUTION in terms of molarity (moles per liter). If water is the only component, you don't really have a solution.
That point aside, one mole of water has a mass of 18.00 grams and there are 1,000 grams in one liter of pure water, with small corrections for temperature and pressure. The "concentration" of water in an aqueous "solution" is therefore 1000 g/L / 18.00 g/mol = 55.6 moles per liter.
AT STP water has a density of 1 gram/ml. One liter of water therefore would contain 1000 grams. Taking 1000 grams and dividing by 18 grams of water per mole would give 55.5 moles. From there the molarity would be 55.5 rounding up to 55.6.
More Questions and Answers:
By what factor would the reaction rate increase?
Flow Scheme of Functional Group Tests?
Identify a household substance in which an ice cube will sink.?
Please help with titration prob.?
I am asking about ipomea carnea so as to know whether its leaves contain drugs and if , what they are?
Discuss important of light in spectroscopic system and how it is been used in analytical procedure.help me!?
How would I draw the constitutional isomer of CH3CH=CHCH3.?
Which of the following type of solid is most likely to have a low, but well defined, melting point?
In Pickle preparation what is the purpose of adding Oil?
Answer:
Molarity is defined as moles of solute per liter of solution. To answer this question, you have to calculate the number of moles of water in one liter, assuming that the solution is water dissolved in itself. 1 liter of water weighs 1 kg, or 1000 g. The molecular weight of water is about 18g/mol.
Therefore:
1 mol/18g x 1000g/L = 55.6 mol/l or 55.6M
55.5!
Let water be called W.
1000gW/1LW x 1molW/18gW = 55.6 (rounding up!)
You usually express the concentration of a SOLUTION in terms of molarity (moles per liter). If water is the only component, you don't really have a solution.
That point aside, one mole of water has a mass of 18.00 grams and there are 1,000 grams in one liter of pure water, with small corrections for temperature and pressure. The "concentration" of water in an aqueous "solution" is therefore 1000 g/L / 18.00 g/mol = 55.6 moles per liter.
AT STP water has a density of 1 gram/ml. One liter of water therefore would contain 1000 grams. Taking 1000 grams and dividing by 18 grams of water per mole would give 55.5 moles. From there the molarity would be 55.5 rounding up to 55.6.
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: