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Molar Mass Calculation
Page 7
Questions (351)
when 10.0 grams of an unknown substance is dissolved in 50. grams of water, the new freezing point becomes -3.00C. What is the
1 answer
asked by
Ronnie
474 views
A volume of 0.285 L of a gas at STP weighs 0.537 g. Calculate the molar mass of the gas.
3 answers
asked by
kellie
437 views
I had to do a lab and had to calculate the molar mass for a substance with this equation MM=Mrt/pv but we had to calculate the
1 answer
asked by
Gabby
448 views
for the titration of n.89g of an uk diaprotic acid with .2500 N sodium hydroxide, it took 35.5 mL to reach the phenolphthalein
1 answer
asked by
Amberra
449 views
A cat is about 10.0% Carbon. My cat weighs about two kilograms. How many moles of Carbon are in my cat?
1 answer
asked by
Kristen
447 views
7.50gram quantity of a diprotic acid was dissolved in water and made up to exactly 250ml. If 25ml of this solution were
4 answers
asked by
Jin
455 views
how may atoms are present in 6.4 grams of SO2( molar mass of SO2=64)
1 answer
asked by
succulent
431 views
What is the mass in grams of Br in 8.53 moles of FeBr5?
1 answer
asked by
Racheal
422 views
66.9 g of a substance X dissolves in enough water to make 0.428 L of a 0.68 M solution. Calculate the molar mass of X in g/mol.
1 answer
asked by
Devin
430 views
A volume of 0.285 L of a gas at STP weighs 0.537 g. Calculate the molar mass of the gas?
PV=nRT where R = 0.0821. Therefore,
1 answer
asked by
susan
436 views
Give the number of chloride ions in 11.1g of calcium chloride.(Mr=molar mass)
n=m/Mr=11.1/110.98=0.100moles of CaCl2 Please help!
1 answer
asked by
Anonymous
453 views
How many moles of CO2 are produce when 51.442572624144 g HCI are produced?
1 answer
asked anonymously
24 views
calculate the 5 moles of CaCO3 in g
1 answer
asked anonymously
27 views
Using the data of 0.3 degrees Celsius freezing point of water-ice mixture, mass of liquid unknown used 7.882g, freezing point of
1 answer
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28 views
unknown used 5.034g, freezing point of unknown liquid solution -3.0 degrees celsius for trial 1 and -2.5 degrees celsius for
1 answer
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21 views
Using the data of 0.3 degrees Celsius freezing point of water-ice mixture, mass of solid unknown used 5.034g, freezing point of
1 answer
asked anonymously
25 views
What is the molar mass of Al2(SO4)
1 answer
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11 views
What is the molar mass of Na
1 answer
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14 views
What is the molar mass of NaOH
1 answer
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10 views
What is the molar mass of (NH4)2O?
1 answer
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10 views
What is the molar mass of sugar, C6H12O6 ?
Responses 34 g/mol 34 g/mol 873 g/mol 873 g/mol 29 g/mol 29 g/mol 180 g/mol
1 answer
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24 views
What is the molar mass of sugar, C6H12O6
1 answer
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7 views
What is the molar mass of water, H2O?
a) 17.01 g b) 18.02 amu c) 17.01 amu d) 18.02 g
1 answer
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11 views
500.214 g of CO2.in significant figure
1 answer
asked anonymously
23 views
How many moles are contained in each of the following? Be sure each of your answer entries has the correct number of significant
1 answer
asked anonymously
41 views
5.90 g C38H60018 =
mol C38H60018
1 answer
asked anonymously
22 views
How many grams are in 5 mol CaCO3?
Responses 50 g 50 g 20 g 20 g 0.05 g 0.05 g 500 g
1 answer
asked anonymously
9 views
How many moles are in 300 g of C25H52?
Responses
1 answer
asked anonymously
13 views
A chemist will use a sample of 30 g of ethanol (C*H_{3}*C*H_{2}*OH) in an experiment. In one to two sentences, make and justify
1 answer
asked anonymously
26 views
Use the table of molar masses to complete the question. Do NOT use any other values except the ones provided in the table below.
1 answer
asked anonymously
46 views
Find the molecular formula of a compound that contains 43.64 g of phosphorus and 56.36 g of oxygen. The molar mass of the
1 answer
asked anonymously
13 views
Sample of glucose contains 1.270x10^21 carbon atoms. What is the mass of this sample in grams
1 answer
asked by
Mihle
8 views
Use the chemical equation to answer the question. 2Ag(s) + H2S(g) → Ag2S(s) + H2(g) The molar mass of silver (Ag) is 108
1 answer
asked anonymously
29 views
A scientist uses 3 g of water (H2O) in an experiment. Which option describes the first step in calculating the number of
1 answer
asked anonymously
14 views
Use the table of molar masses to answer the question.
Element Molar Mass (g/mol) carbon 12.01 oxygen 16.00 How many molecules of
1 answer
asked anonymously
63 views
The atomic mass of Iron (Fe) is 55.85 amu, and the atomic mass of chlorine (Cl) is 35.45 amu. Which molar mass is correct for
1 answer
asked anonymously
28 views
The molar mass of CaCl2
is 110.98g/mol. How many molecules of CaCl2 are there in 4g?(1 point) Responses 5.426×1021 molecules 5
1 answer
asked anonymously
50 views
The molar mass of CaCl2
is 110.98g/mol. How many molecules of CaCl2 are there in 4g?(1 point) Responses 2.409×1024 molecules 2
1 answer
asked anonymously
62 views
Use the table of molar masses to complete the question. Do NOT use any other values except the ones provided in the table below.
1 answer
asked anonymously
41 views
A 1.21 g sample of an imaginary gas occupies a volume of 860 mL at 43.0 oC and 113 kPa. Determine the molar mass of the
1 answer
asked anonymously
11 views
The atomic mass of Iron (Fe) is 55.85 amu, and the atomic mass of chlorine (Cl) is 35.45 amu. Which molar mass is correct for
1 answer
asked by
hatemaths
11 views
Use the table of molar masses to complete the question. Do NOT use any other values except the ones provided in the table below.
1 answer
asked by
hatemaths
11 views
The molar mass of BF3 is 67.81 g/mol. How many molecules of BF3 are there in 2 g?(1 point)
Responses 1.776×1022 1 point 7 7 6
1 answer
asked by
the
20 views
Calculate the molar mass of treacherous sulfate acid h3po 4 when age is 1 p is equals to 31 and o is equals to 16
1 answer
asked by
Henry joy
4 views
The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction. The
1 answer
asked anonymously
11 views
If the weights of carbon, hydrogen, and oxygen are approximately 12, 1, and 16 g/mol respectively, about how much would 1 mole
1 answer
asked by
iknj
11 views
How many moles is in 43g of CO₂? * 0 points 1204 mol 1.54 mol 2.59 x 10²⁵
only choose one answer
1 answer
asked anonymously
5 views
Determine the mass in grams of ammonium chloride, NH4CI, required to prepare 0.250 L of a 0.35 M solution of ammonium chloride.
*
1 answer
asked anonymously
6 views
How many moles of Si are in 30.5 g of Si? ( AM=28.1g/mol)
1 answer
asked by
Jeremiah latkuoth
6 views
The chemical formula for diethyl sulfoxide is:
(Ch3ch2)_2SO Calculate the molar mass of diethyl sulfoxide
1 answer
asked anonymously
9 views
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