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

The outlet temperature, You are interested in modelling a 10 m  surge tank ...

You are interested in modelling a 10 m  surge tank which holds the products exiting a plug flow reactor, as shown below. One of the purposes of the tank is to heat the reactor prod

What is electrode potential?, When a strip of metal (M) is brought in conta...

When a strip of metal (M) is brought in contact with the solution containing its own ions (Mn+), then either of the following three possible processes can take place:      The meta

Anomalous behaviour of boron, Just like lithium and beryllium in Groups Lan...

Just like lithium and beryllium in Groups Land 2, boron also shows anomalous behaviour. In general, the boron chemistry resembles that of silicon (occupying a diagonal position in

TGA, factors affecting TGA

factors affecting TGA

De?ne quoin and queen closer, De?ne Quoin and Queen closer De?ne Least ...

De?ne Quoin and Queen closer De?ne Least count. Explain functions of the foundation

Carbonyl compounds, Which type of compounds give witting reactions

Which type of compounds give witting reactions

Urea, What is the nature of urea? Is it acidic basic or neautral how can wr...

What is the nature of urea? Is it acidic basic or neautral how can wr verify it?

Valence electron of pd, Valence electron of pd Pd has ten valence elect...

Valence electron of pd Pd has ten valence electrons in the neutral atom.   There are no charges and no X-type ligands in the complex; as, this is a d 10 complex.

Polarity and salvation, Polarity and salvation   A solvent is a liqu...

Polarity and salvation   A solvent is a liquid medium in which dissolved are known as solutes. Solvents are useful for storing species that would otherwise be in inconvenien

Gaseous state, the density of a gas ''A'' is twice that of gas ''B'' at sam...

the density of a gas ''A'' is twice that of gas ''B'' at same temperature.The molecular mass of ''B'' is thrice that of ''A'' .the ratio of the pressures acting on A andB

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