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Molar Mass Calculation
Page 4
Questions (351)
When determining the molar mass of a volatile liquid by heating the liquid and then using the condensed, volatile vapor's mass,
1 answer
asked by
Nari
1,082 views
Using the molar volume (STP) or the ideal gas law equation, determine the molar mass,g/mole, of each of the following.
A: 11.2g
2 answers
asked by
Will
737 views
Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as
4 answers
asked by
Sam
2,049 views
If a 14.05g sample of a gas occupies 10.0L at STP, what is the molar mass of the gas at 125 degrees Celsius?
1 answer
asked by
Kim
593 views
I need help with this question!!
a sample of pure KHP weighing .8097g dissolved in water and titrated with 40.25 mL of NaOH
4 answers
asked by
Emily
869 views
Calculate the molar mass that would be obtained from the actual experimental data under the following conditions. The unknown is
1 answer
asked by
cinderrrr
434 views
An experiment shows that a 114 mL gas sample has a mass of 0.168 g at a pressure of 697mmHg and a temperature of 30 C.
What is
3 answers
asked by
JULIE
642 views
1 mole of an element or compound contains 6.20 times 10 to the 23rd power atoms or molecules of the element or compound. 1 mole
1 answer
asked by
melly
465 views
Calculate the molar mass that would be obtained from the actul experimental data under the following conditions. The unknown is
1 answer
asked by
Jasmine
417 views
How many moles of oxygen are present in 8g of oxgen gas.
1 answer
asked by
Abba
304 views
A solutionof 2.50g of a compound having the empirical formula C7H6O2 in 25.0g of benzene is observed to freeze at 4.3 degree
2 answers
asked by
Anonymous
1,030 views
If a 2.15-g sample of gas occupies 750. mL at STP, what is the molar mass of the gas at 125 degrees celcuis
1 answer
asked by
kris
1,289 views
Calculate the molar mass of a compound if 0.366 mole of it has a mass of 260.0 g. Round your answer to three significant digits.
3 answers
asked by
Nadia
17 views
more volume of NaOH means more moles of NaOH (volume * molarity = mole ; molarity=constant) , more moles of NaOH means more
2 answers
asked by
fred
983 views
If 0.2178 g of a diprotic solid acid is neutralized by 44.81 mL of 0.0953 M NaOH, calculate the molar mass of the solid acid
3 answers
asked by
Jake
2,124 views
A volume of 0.285 L of a gas at STP weighs 0.537 g. Calculate the molar mass of the gas
(1)(0.285) = n(0.0821)(273). .0036 is
4 answers
asked by
Melissa
534 views
Calculate the number of moles in 3.20 g of each of the following:
Ca3N2 Express your answer in moles
3 answers
asked anonymously
29 views
Dinitrogen oxide (or nitrous oxide), N20, also known as laughing gas, is widely used as an anesthetic in dentistry.
How many
3 answers
asked anonymously
45 views
How many grams of butyric acid contain 3.28 x 1023 atoms of oxygen?
Express your answer to three significant figures and include
3 answers
asked anonymously
42 views
a 6.13gsample of hydrocarbon occupied 5.ooL container at25 degree centigrade and 1.00 atm calculate the molar mass
1 answer
asked by
ngugi
357 views
Determin the number of oxygen atmos in 1.75kg of potassium sulfate.
3 answers
asked by
Andy
309 views
The molecular of aspartame, the generic name of Nutrasweet, is C14H18O5. The molar mass of aspartame is?
2 answers
asked by
Jimmy
607 views
what is the molar mass of a gaseous organic compound with a density of 3.38 g/L at 40oC and a pressure of 1.97 atm?
Ok, I am
1 answer
asked by
Michelle
458 views
what is the molar mass of a gaseous organic compound with a density of 3.38 g/L at 40oC and a pressure of 1.97 atm?
3 answers
asked by
Anonymous
1,055 views
The mass of a particular gas is 3.562 g. If the temperature of the gas in a 126.4 mL vessel is 97.6oC, and the atmospheric
1 answer
asked by
Anonymous
433 views
Please refer to the previous post Chemistry Help Please.
Moles of S203^2- = (molarity)(volume): =(0.032400 mol/L)(0.053 litres
7 answers
asked by
Sara
599 views
Sorry its not letting me post the entire thing in the other thread
.000146612 mols KIO3 x (3 mols I2/1 mol KIO3) x (2 mols
4 answers
asked by
Sara
932 views
<b>My objective is to find the molar mass of a gas.
Is this the correct balanced equation for magnesium ribbon reacting with
3 answers
asked by
Jake
423 views
What is the mass of 0.005 moles of camphor, urea, and potassium ethanoate? Thanks in advance.
You need to look up the formula of
2 answers
asked by
Aubrey
539 views
How many grams are thee in 2.3times 10to the 23 power
What units are you measuring with 2.3 * 10^23? Are they pounds, ounces,
1 answer
asked by
taylor
415 views
calculate the molar mass ofthe substance. divide it by Avogadros number (6.02x10 to 23 power)
.)Hydrogen2 2/(6.02 x 10^23) = ??
1 answer
asked by
Jasmine
804 views
The weight percent of oxygen in an oxide that has the formula MO2, is 15.2%. What is the molar mass of this compound? What
3 answers
asked by
nglaze
1,723 views
What mass in grams of a 0.500 m(molal) solution of sodium acetate, CH3CO2Na, in water would you use to obtain 0.200mol of sodium
4 answers
asked by
Jessica
3,717 views
Calculate the molar mass of
K2[Cu(C2O4)2]*2H2O I got 353.81 is this correct ?
3 answers
asked by
anna
2,197 views
during an effusion experiment, oxygen gas passed through a tiny hole 2.5 times faster than the same number of moles in another
3 answers
asked by
Brooklynne
1,815 views
When 0.10 g of insulin is dissolved in 0.200 L of water, the osmotic pressure is 2.30 Torr at 20°C. What is the molar mass of
4 answers
asked by
Mark
1,623 views
the gaseous product of a reaction is collected in a 25.0-L container at 27degree celcious. the pressure in the container is 300
4 answers
asked by
Anonymous
1,396 views
A dilute aqueous solution of an organic compound soluble in water is formed by dissolving 2.35 g of the compound in water to
4 answers
asked by
Jeremy
1,378 views
2. When 0.354 g of an unknown nonelectrolyte compound was dissolved in 12.5 g of benzene a solution was formed that froze at
1 answer
asked by
Helen
1,241 views
What is the molar mass of feso4 . 7h2o
2 answers
asked by
Hyaa
1,210 views
A 0.120 g sample of a diprotic acid of unknown molar mass is dissolved in water and titrated with 0.1218 M NaOH. The equivalence
2 answers
asked by
Jorge
1,201 views
A volume of 0.155 L of a gas at STP weighs 0.412 g. Calculate the molar mass of the gas.
2 answers
asked by
Mike
1,117 views
I need help to find the answer to this problem:
The formula for aluminum sulfate is Al2(SO4)3. Figure the molar mass of aluminum
2 answers
asked by
wizzkid01
1,141 views
find the average molar mass of polyethylene when 4.40 g of the polymer is dissolved in benzene to produce 200.0 mL of solution
3 answers
asked by
Anonymous
1,116 views
An experiment shows that a 111ml gas sample has a mass of 0.161g at a pressure of 725mmHG and a temperature of 36degrees C.What
2 answers
asked by
Jess
1,121 views
A 0.2861 gram sample of an unknown acid (HX) required 32.63 mL of 0.1045 M NaOH for neutralization to a phenolphthalein
2 answers
asked by
Jake
1,091 views
Calculate the molar mass of a diprotic acid.
It reaches the endpoint of the titration with NaOH at 28ml. The initial
3 answers
asked by
Katie
1,118 views
what is the molar mass of the unknown gas that diffuses 0.250 times as fast as hydrogen gas under the same circumstances?
3 answers
asked by
Aamna Qamar
1,063 views
Determine the number of NH4+ ions in a 145 g sample of (NH4)2SO4.
2 answers
asked by
angela
1,053 views
How do you calculate the molar masses for Strontium Phosphate and Chromium(III)Nitride using significant figures correctly?
2 answers
asked by
Katie
1,010 views
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