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32 Answered Questions for the topic Molar Mass

Molar Mass Science Chemistry

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?


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?
Molar Mass Chemistry 10th Grade

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.

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?
Molar Mass Chemistry Molecule

01/30/18

Can someone help me with empirical formula and molar mass?

How do I find out the empirical formula of a molecule and how do I find the molecular formula?   Ex:    1. What's the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen, and... more
Molar Mass Chemistry Compounds

12/04/17

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

11/14/17

determine the mass of the sample

1.48 mol carbon tetrafluoride 
Molar Mass Chemistry Moles

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

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

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

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
Molar Mass Chemistry

10/24/16

there is 6.10g of Cobalt (II) Nitrate, Co(NO3)2, what is the molar mass?

there is 6.10g of Cobalt (II) Nitrate, Co(NO3)2, what is the molar mass?  
Molar Mass Chemistry Lab

03/20/16

chem helo plss

starting with n=g/MM and PV=nRT, detrive the formula for molar mass

01/27/16

CHEMISTRY PLEASE HELP?!!!Determine the molar mass of a compound - given freezing point and masses of components in a solution?

A company is studying the use of a compound as a potential antifreeze. When 0.243 g of the compound is dissolved in 25.0 g of water, the freezing point of the solution is -0.201 * Celsius.   a.... more
Molar Mass Math Chemistry

01/13/16

A volume of 253 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0

A 0.548 gram sample of a metal, M, reacts completely with sulfuric acid according to:M(s)+H2SO4(aq) -> MSO4(aq)+H2(g)A volume of 253 mL of hydrogen is collected over water; the water level in... more
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