cm. What is molar solution ?

cm. What is molar solution ?
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1 Answer

Answer :

: If half a mole ( 0.5 mole) of liquid per liter volume of a solution is dissolved at a given temperature , then the solution should be dissolved in cm. Called molar solution.
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Description : Describe: a) gram molecular mass b) Molar Volume.

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What is molar mass?

Description : What is molar mass?

Last Answer : Ans. The mass of one mole of a substance is called its molar mass.

Which colligative property is preferred for the molar mass determination of macro molecules ? Why ?

Description : Which colligative property is preferred for the molar mass determination of macro molecules ? Why ?

Last Answer : Ans. Osmotic pressure is preferred over all other colligative properties because :  (a) even in dil. soln the o. p.values are appreciably high and can be measured accurately.  (b) o. p.can ... at high temp. where the solute may decompose. The depression in freezing point is measured at low temp.

The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

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Last Answer : ANSWER: Z -- 0.1 MOLAR HYDROCHLORIC ACID

The energy required to melt one mole of a solid at its melting point is called one of the following. w) the molar heat of fusion x) the molar hear of vaporization y) the molar heat of capacity z) the melting point

Description : The energy required to melt one mole of a solid at its melting point is called one of the following. w) the molar heat of fusion x) the molar hear of vaporization y) the molar heat of capacity z) the melting point

Last Answer : ANSWER: W -- THE MOLAR HEAT OF FUSION

The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine

Description : The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine

Last Answer : ANSWER: Y -- FLUORINE AND CHLORINE

Which of the following molecules would have the smallest molar enthalpy of vaporization? w) Water x) Formaldehyde y) Methane z) Ammonia

Description : Which of the following molecules would have the smallest molar enthalpy of vaporization? w) Water x) Formaldehyde y) Methane z) Ammonia

Last Answer : ANSWER: Y -- METHANE

Pure water is approximately what molar concentration: w) .55 Molar x) 5.5 Molar y) 55 Molar z) 550 Molar

Description : Pure water is approximately what molar concentration: w) .55 Molar x) 5.5 Molar y) 55 Molar z) 550 Molar

Last Answer : ANSWER: Y -- 55 MOLAR

Which one of the following statements is TRUE regarding the molar heat capacity for the noble gases? w) heat capacity decreases from Helium to Xenon x) heat capacity increases from helium to argon y) heat capacity increases from Helium to Argon, then decreases to Xenon z) heat capacity is the same for all noble gases

Description : Which one of the following statements is TRUE regarding the molar heat capacity for the noble gases? w) heat capacity decreases from Helium to Xenon x) heat capacity increases from helium to argon y) heat ... Helium to Argon, then decreases to Xenon z) heat capacity is the same for all noble gases 

Last Answer : ANSWER: Z -- HEAT CAPACITY IS THE SAME FOR ALL NOBLE GASES 

If you have a back molar tooth ache does that mean root canal if the tooth is crowned?

Description : If you have a back molar tooth ache does that mean root canal if the tooth is crowned?

Last Answer : Depends on what's actually happening, I think. I have had some temporary tooth aches (not very bad ones though) that didn't mean anything and went away. But the dentists I've know have said that ... till they open on Monday morning, and hope it goes away before then and/or take some pain reliever.

How do I use this molar extinction coefficient?

Description : How do I use this molar extinction coefficient?

Last Answer : answer:Molar extinction coefficients are typically in M^-1* cm^-1 (aka 1/(M*cm)). If using a cuvette with a 1 cm path length, using the equation you give above the cm cancels and it gives you concentration in ... b = cm, cm cancels, and M^-1 is in the denominator and thus c is left to simply be M.

Do gases with high molar masses travel through small openings faster than gases with low molar masses?

Description : Do gases with high molar masses travel through small openings faster than gases with low molar masses?

Last Answer : answer:I wouldn’t think so, unless you include a propellant. Sorta like with the aerosol can. I don’t expect mass to matter much unless you’re driving the gas gravitically. All things being equal, I’d guess that you’re looking at the same rate of flow in both cases. But then, I’m no physicist.

My g/f just broke off a piece of her molar. She already had a root canal done on that tooth and had a temporary filling (been there for awhile). If she can't get a crown in the next month of so, is she in trouble?

Description : My g/f just broke off a piece of her molar. She already had a root canal done on that tooth and had a temporary filling (been there for awhile). If she can't get a crown in the next month of so, is she in trouble?

Last Answer : answer:Would this happen in Canada? Anyway, my (absolutely non-expert) opinion is that a month will not make a difference.

Why does higher molar acid react faster?

Description : Why does higher molar acid react faster?

Last Answer : answer:sigh We don’t do your homework for you here. (but essentially, high molar acids are more concentrated)

Molar removal?

Description : Molar removal?

Last Answer : I had four teeth pulled when I was younger. Then I had my wisdom teeth taken out on my 18th birthday. Thanks mom. Both times my mouth hurt, but it didn’t make me talk weird or anything. Your mouth will probably heal just fine and you won’t notice any difference after a while.

Do ectopic pregnancies count towards the G's and P's count? How about molar pregnancies?

Description : Do ectopic pregnancies count towards the G's and P's count? How about molar pregnancies?

Last Answer : Gravida is the number of times pregnant so I would say that the ectopics count towards the G number. Note twins counts as only once pregnant. On to your example. Why do you assume that the ectopic fetuses will be aborted? She could just have easliy be designated G4P2202.

How many molar teeth are present in the upper jaw in adult humans. -Science-7

Description : How many molar teeth are present in the upper jaw in adult humans. -Science-7

Last Answer : There are 6 molar teeth present in the upper jaw in adult humans.

What would be the molar concentration of human DNA in a human cell? -Biology

Description : What would be the molar concentration of human DNA in a human cell? -Biology

Last Answer : Hence, the molar concentration of DNA in each diploid cell in humans is 2.77×1023moles.

What is the conductivity of molar ?

Description : What is the conductivity of molar ?

Last Answer : The density of a solution as cm. When one mole of electrolytic substance is dissolved in it, the conductivity obtained by multiplying it by the relative conductivity of the solution is called molecular conductivity of the solution .

10 ml 0.2 Molar Na2CO3 How many grams of 0.1 Molar HCl is needed to soothe ?

Description : 10 ml 0.2 Molar Na2CO3 How many grams of 0.1 Molar HCl is needed to soothe ?

Last Answer : Na₂CO₃ + 2HCl = NaCl + CO₂ + H₂O of Na₂CO₃ , density S₁ = 0.2 M; Volume , V₁ = 10 mL HCl density S₂ = 0.1 M; Volume = V₂ 2S₁V₁ = S₂V₂ ∴ V₂ = 2S₁V₁ / S₂ = 2 0.2 10 / 0.1 = 40 mL The molecular mass of HCl , M = ... / MV₂ ∴ w = S₂MV₂ / 1000 = 0.1 36.5 40/1000 = 0.146 g (Ans.)

What is Molar ?

Description : What is Molar ?

Last Answer : Molar means grinding teeth.