Find the molecular formula for a compound, Chemistry

Assignment Help:

1. A compound whose empirical formula is CH3 has a molar mass of 30 g/mol. What is its molecular formula? (3 points)

2. Find the molecular formula for each of the following compounds: (6 points) a) 30.5% nitrogen; 69.5% oxygen; molar mass of 46 g/mol NO2 N2O4 N3O6 N5O10 N7O14 b) 2.67 g of carbon; 0.22 g of hydrogen; 7.11 g of oxygen; molar mass of 90 g/mol Hint: Start by calculating the empirical formula. 3. A gas sample of 17.0 g is constituted of 15.8 g of carbon, the rest being hydrogen. Given that the sample?s volume is 4.9 L at NTP conditions, calculate the molecular formula for this compound.(5 points) 4. A compound is constituted by mass of 22.6% phosphorus, the rest being chlorine. Given that a volume of 307 mL of the gas has a mass of 1.55 g at 25 ?°C and 90 kPa, find the molecular formula for this compound. (5 points) 5. A compound is constituted by mass of 52.1% carbon and 13.1% hydrogen, the rest being oxygen. Given that a volume of 5.33 L of this gas has a mass of 11.5 g at 13 ?°C and 110 kPa, find the molecular formula for this compound. (5 points) 


Related Discussions:- Find the molecular formula for a compound

Biochemistry.., why dietry iodine is important in thyroid functioning

why dietry iodine is important in thyroid functioning

What are the compositions of the equilibrated top layers, What are the comp...

What are the compositions of the equilibrated top Layers? Figure is a temperature-composition phase diagram for the binary system of water (A) and phenol (B) at 1 bar. These li

Alkyl substituents on the double bond, Alkyl substituents on the double bon...

Alkyl substituents on the double bond 2,3-Dimethyl-2-butene has four alkyl substituents on the double bond. This alkene is more stable than 2,3-dimethyl-1-butene and 2-ethyl-1-

Xylene, How to synthesize xylene? How many methods(ways) to synthesize xyle...

How to synthesize xylene? How many methods(ways) to synthesize xylene?

What is the activation center of an enzyme, Is it the key or the lock of th...

Is it the key or the lock of the lock and key model? Ans) The activation center is a region of the enzyme formed by its spatial conformation to which the substrate binds. In the

Organic chemistry, it is impossibe to synthesise orgnic compounds in the la...

it is impossibe to synthesise orgnic compounds in the lab since life force is essential for their formation -theory is known as

By which cycle form a helium nucleus?, Q) Inside the sun four hydrogen nucl...

Q) Inside the sun four hydrogen nuclei combine to form a helium nucleus by which cycle? Ans) Proton-proton cycle.

Explain cellobiose, Explain Cellobiose Cellobiose is a dimer of D-gluc...

Explain Cellobiose Cellobiose is a dimer of D-glucose, it is hydrolyzed by aqueous acid into two molar equivalents of D- glucose.

Can you explain texture, Q. Can you explain Texture? Texture indicates ...

Q. Can you explain Texture? Texture indicates the characteristic of a food and would include descriptive parameters like graininess, softness, chewiness, brittleness etc. The t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd