36 Answered Questions for the topic Molar Mass

04/15/22

How many individual H atoms are in a sample of C2H4Cl2 that also contains 12.1 grams of chlorine?

I really need help with this question. I have no clue how to put it into a formula that I can solve to get the answer.
Molar Mass Chemistry Acid Base

04/13/22

molar mass - acid base problem -chemistry (9.11)

100ml of a solution containing 0.081 g of a strong acid HA has a pH=2. What is the chemical formula of the strong acid?A. HFB. HClC. HBr (the answer)D. HIso I came up... more
Molar Mass Chemistry Moles Mol

03/11/21

Hey , can someone help me do this ? Moles , Chemistry

How many per gram 3.01 ● 10 22 molecules of nitric acid?What is the volume of 2,408 ● 10 24 molecules of oxygen?How Many Molecules are in 112 dm3 of Hydrochloride?How many grams is 134.4 dm3 of... more
Molar Mass Chemistry

02/24/21

Molar Mass from osmotic pressure

When 2.63 g of a polypeptide is dissolved in 237 mL of water, the resulting solution is found to have an osmotic pressure of 0.125 atm at 37.0 °C. What is the molar mass of the polypeptide? (Assume... more
Molar Mass Chemistry Mole

02/01/21

My question is about chemistry , it says calculate the number of atoms of Cl in 0.0425h of C2H4Cl2

Can you Solve it step by step please ? I have a question about a step ,I want to get the number of moles of Cl , so I need to divide it’s mass(g) by its molar or molecular mass , will the molar... more

05/19/20

Please help! I cannot figure out the steps of going from mass of Hydrogen to moles of carbon in ethanol.

A sample of ethanol (C2H6O) contains 3.024g of hydrogen. How many moles of carbon are in the sample ? Molar Mass of ethanol (C2H6O)=46.07g/mol
Molar Mass Chemistry Volume

04/15/20

how many cm3 h2so4 1m solution will act with 16.8 g nahco3?

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Molar Mass Chemistry Xef4

04/01/20

Calculate the molar mass of the compound XeF4 show work

Molar Mass Math Chemistry

03/20/20

chemistry molar mass

When 6 protons and 6 neutrons fuse, one nucleus of carbon-12 (C-12 or 12C6+) is formed.  When one nucleus of C-12 is formed, 1.64 × 10−24 g of mass is lost. a.     Calculate the mass loss when one... more
Molar Mass Chemistry

10/03/19

Molar Mass help

What is the molar mass ofAcetic Anhydride Acetylsalicylic AcidAcetic AcidPlease show work
Molar Mass Chemistry

03/25/19

How many moles of KI are in 8.89×1024 formula units?

How many moles of KI are in 8.89×1024 are in  formula units?

02/20/19

A gas sample is collected at 21 degrees celsius and 0.988 atm. If the sample has a mass of 4.7 g and a volume of 396 mL. What is the molar mass?

10th grade Chemistry gas law problem. Find the molar mass given the temperature and air pressure.
Molar Mass

06/19/18

calculate the molar mass ( molecular weight) of a sample if a single molecule weighs 7.45 * 10^-23 g

is this even possible to determine if you don’t know what elements are in the molecule? probably so but i’m stumped! S.O.S.

05/22/18

An anti cavity mouthwash is 0.05% (w/v) sodium fluoride. What is the molarity of sodium fluoride in the mouthwash?

How many grams of sodium fluoride are there in 0.5 fluid ounces of the mouthwash?

05/22/18

what is the molar mass of aluminum?

what is the  molar mass of aluminum?
Molar Mass

02/14/18

how to find molar mass of an unknown compound

A solution is prepared with 3.85 g of an unknown compound in 100.0 g of cyclohexane. The solution had a freezing point of 4.18 degrees Celsius. what is the molar mass of the unknown compound?

Can someone help me with finding out the Molar Mass and Percentage Composition for compounds?

Here are two examples:   Mg₃P₂   &   Sr(OH)₂     I've been struggling with trying to find out the molar mass/percentage compositions for these questions but I just struggle to do so,... more
Molar Mass Chemistry Moles Mass

11/14/17

determine the mass of the sample

1.48 mol carbon tetrafluoride
Molar Mass Chemistry Moles Atoms

02/08/17

How many moles would 7.84 x 10^25 atoms of magnesium be? – Show Work

How many moles would 7.84 x 10^25 atoms of magnesium be? – Show Work
Molar Mass Chemistry Mass Sodium

02/08/17

What is the mass of 1.2 x 10^-3 moles of sodium chloride? – Show Work

What is the mass of 1.2 x 10^-3 moles of sodium chloride? – Show Work
Molar Mass Chemistry Moles Sodium

02/08/17

How many grams in 3.91 moles of sodium? – Show Work

How many grams in 3.91 moles of sodium? – Show Work
Molar Mass Chemistry Moles Grams

02/08/17

How many grams in 45.22 moles of strontium? – Show Work

How many grams in 45.22 moles of strontium? – Show Work
Molar Mass Chemistry Moles

02/08/17

How many moles in 31.0 g of chlorine? (Remember chlorine is diatomic) – Show Work

How many moles in 31.0 g of chlorine? (Remember chlorine is diatomic) – Show Work
Molar Mass Chemistry Moles

02/08/17

How many moles in 34.2 g of sulfur? – Show Work

How many moles in 34.2 g of sulfur? – Show Work

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