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

Metallic acetates - acetic acid, Metallic Acetates - Acetic Acid For ma...

Metallic Acetates - Acetic Acid For making several useful metallic acetates, illustrated as: (1) Basic copper acetate that is used for making green paints. (2) Al, Fe and

#titlehybridization.., questions related to hybridization of ccompounds

questions related to hybridization of ccompounds

Transition metals, what is the advantages of preparing interstitial compoun...

what is the advantages of preparing interstitial compounds

Briefly explain about alloys, Q. Briefly explain about Alloys? Ans. ...

Q. Briefly explain about Alloys? Ans. Pure metals are malleable. Metals that are harder, stronger and less malleable are sometimes required. These characteristics may be a

Equivalent weight, Equivalent weight of Ca in Ca3(PO4)2 is

Equivalent weight of Ca in Ca3(PO4)2 is

Colloid, what are the classification of colloids ?

what are the classification of colloids ?

Uses of polyglycolic & polylactic acid, Uses of Polyglycolic acid,Polylacti...

Uses of Polyglycolic acid,Polylactic acid and Polyhydroxybutyrate PGA and PLA (90 : 10) is utilized to form absorbable structure to close an internal of external wound and has

Calorimetry, An unknown amount of copper, at 95 degrees C,, is placed in 10...

An unknown amount of copper, at 95 degrees C,, is placed in 100 g of water at 20 degrees C. It reaches temperature equilibrium at 60 degrees C. What is the mass of the copper?

Chlorination, 90ml of an unknown concentrated chlorine was diluted with 225...

90ml of an unknown concentrated chlorine was diluted with 2250l of water.The dilution now is 0.08mg/l. what is the initial concentration of the chlorine before dilution?

Chemical kinetics of the peroxodisulfate ion, Chemical Kinetics of the Pero...

Chemical Kinetics of the Peroxodisulfate Ion The peroxodisulfate  ion is one of the strongest oxidants that are  called, although the oxidation reaction is relatively slow.

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