Top Answer

mol = mass/Mr

If the Mr and number of moles of a substance is known then the mass can be calculated.

example:-

if we have 1 mole of Na, how many grams do we have?

mass = mol x Mr

mass = 1 x 23

mass = 23g

🙏🏿

0🤨

0😮

0😂

0Moles is equal to grams divided by the mw therefore grams=(mw)(moles).

Atomic mass of carbon: 12.0Formula of grams ---> moles: grams / atomic mass = moles3.00 grams Carbon / 12.0 grams = .25 moles Carbon

To convert from grams to moles, use this general formula:Grams Ã· Molar mass = Moles10.0 grams Cu Ã· 63.5 grams Cu = 0.157 moles CuSee the related question below that details the conversion of grams to moles and moles to grams.

if they are at percent then change it by imagining that it is out of 100 so you get this into grams then divide the grams by the molar mass to get the moles then find the smallest moles and divide it and the other ones by the smallest moles..... then you get your ratio for that question then apply it to writing the formula...

Divide grams by the molar mass of the substance.

1 mole. The formula weight of sulfuric acid is 98.1 grams per mole. Dividing 100 grams by the formula weight gets you 1.01 moles.

4 moles The formula weight of sulfuric acid is 98.1 grams per mole. So dividing 392 grams by the formula weight gets you 4 moles.

The formula for potassium dichromate is KËÃCrËÃOËÈ. How many grams of oxygen will be in 2 moles of potassium dichromate?

224 grams of oxygen are in 2 moles of potassium dichromate.

# of moles = Mass÷ Formula weight Example: 6 grams of Carbon atoms Carbon has an atomic mass of 12 grams so according to the Equation # of moles = 6÷ 12 = 0.5 moles For a compound such as CO2 , Formula weight = ( 1 mole of carbon atom weighs 12 grams + 2 moles of oxygen atoms weighs 32 grams ) 44 grams. Example: 24 grams of carbon dioxide = 24÷ 44 = 0.5454moles

You can only calculate the empirical formula because you do not have a mass of this compound given. To do the empirical formula assume 100 grams and change percent to grams. Get moles. 80 grams Carbon (1 mole C/12.01 grams) = 6.66 moles C 20 grams hydrogen (1 mole H/1.008 grams) = 19.84 moles H the smallest becomes 1 in the empirical formula and the other number is divided by it, Thus; H/C 19.84 moles H/6.66 moles C = 2.9, which we call 3 so, CH3 --------------- is the empirical formula To get the molecular formula tour question needed to read; How to calculate molecular formula from such ans such mass of compound with these percentages of elements, Which, of course, your question did not provide. Then you would have divided that given mass by the mass total of the elements of the empirical formula, got a whole number by which you would have multiplied the numbers of your empirical formula to get molecular formula.

The molar mass of ammonia is about 17 grams, so that 3 moles would have a mass of 51 grams.

Four moles of methane would have a mass of 64,12 grams.

Ammonia = NH3Molecular mass = 16.0Formula of grams to moles: grams / molecular mass = moles170,000 g / (16.0) = 10,600 moles NH3Note that the answer is with three significant digits

The molar mass of ammonia is about 17 grams, so that 3 moles would have a mass of 51 grams.

# of moles = Mass÷ Formula weight Example: 6 grams of Carbon atoms Carbon has an atomic mass of 12 grams so according to the Equation # of moles = 6÷ 12 = 0.5 moles For a compound such as CO2 , Formula weight = ( 1 mole of carbon atom weighs 12 grams + 2 moles of oxygen atoms weighs 32 grams ) 44 grams. Example: 24 grams of carbon dioxide = 24÷ 44 = 0.5454 moles So for sodium, # of moles = 45.48 g ÷ 22.99g/mole = moles You divide!

you just divide by the molar mass

You first need to know what element, or the molecular formula of the 9.8 grams consists of.

the formula for the moles of a substance is mol= grams/ grams per mol the grams per mol of carbon is 12.01 grams per mol, so... mol= 360g/12.01 grams per mol = 27.7 mol

In one mole of potassium dichromate, there seven moles of oxygen. This means in two moles of K2Cr2O7, there are 14 moles of O, or 7 Moles of O2, which equals 224 grams.

Depends on how many moles of one substance, as well as its gram atomic/formula/molecular mass.

0.54 moles of atoms are in 7.00 grams of Carbon 13. The formula used to calculate the number of moles of atoms is No. of moles = Mass divided by Relative tomic Mass or 7 divided by 13.

1 mole is the molecular mass of a compound, element, ion in grams.

The mass of 2 moles of ethyl alcohol would be 92,14 grams.

The relative molecular mass of magnesium chloride is approximately 60. The molar mass is therefore 60g per mole. Therefore there is 0.42mol of formula units in 2.5 grams.The formula mass of MgCl2 is 24.3 + 2(35.5) = 95.3Amount of MgCl2 = 2.5/95.3 = 0.0262molThere are 0.0262 moles of formula unit in 2.5 grams of magnesium chloride.To get the number (not in moles), multiply the amount in moles by the Avogadro's constant.

Trending Questions

Do potatoes have genders?
Asked By
Wiki User

What are examples of prefixes and suffixes?
Asked By
Wiki User

What pokediger1 password in roblox?
Asked By
Wiki User

How do you get 1000000 robux for free?
Asked By
Wiki User

Who was Anna Kreisling?
Asked By
Wiki User

What are the codes for the prodigy epics?
Asked By
Wiki User

Hottest Questions

How did chickenpox get its name?
Asked By
Wiki User

Do animals name each other?
Asked By
Danika Abbott

Previously Viewed

What is the Formula to change moles to grams?
Asked By
Wiki User

Unanswered Questions

What are the two conditions under which a diode is operated?
Asked By
Wiki User

How does acceptance of responsibility influence effective communication?
Asked By
Wiki User

What is the benefit of analyzing the market and alternative industries before individual securities?
Asked By
Wiki User

Mga positibo at negatibong epekto ng pananakop ng hapon sa Pilipinas?
Asked By
Wiki User

Slum children at play by Ruskin Bond summary?
Asked By
Wiki User

Does arsenio hall have ms?
Asked By
Wiki User

Ano ang mabuti at di mabuting epekto ng kalakalang galyon sa pamumuhay ng mga Filipino?
Asked By
Wiki User

Anu-ano sining ang kilala sa lalawigan ng Tarlac?
Asked By
Wiki User