General Chemistry Answers

What are the adhesive and cohesive forces?

Identify the types of intermolecular forces experienced by specific molecules? 

Write the formula of the molecular compounds formed by the following nonmetallic elements. 

1. As and Cl
2. N and O
3. Se and Cl
4. C and Br
5. P and O

A mixture of hydrogen gas and oxygen gas exerts a total pressure of 3.0 atm on the walls of its containee. If the partial pressure of hydrogen is 1.65 atm, find the mole fraction of oxygen in the mixture.

How many grams of oxygen gas will completely react with 3.8 moles of propane

@ 0.154g of organic compound Containing carbon, Hydrogen and oxygen only, on ignition in oxygen gave 0.2199 of carbon (iv) oxide and 0.135g of water. If the Vapour dansity of the compound is 31 @ find the empirical formula (b) it's molecular formula

b Calculate the number of grammes of substance present in 3.01 + 10²² atoms of tetraoxosulphate (vi) acid

a) 0.154g of organic compound Containing calbon, Thydrogen and oxygen only, on ignition in oxygen gake 0-2149 of carbon (iv) oxile and 0.135g of Loater. If thes Vapour dansity of the compound is 31 formula (b) it's molecular formula It's emperical

b Calculate the number of grammes of substance present in 3rol + 1022 atoms of letra osco sulphate (vi) acid

Which substances always have constant composition? Warning! Choose all correct answers!

1- oxides

2- sulfides

3- simple substances

4- hydrides

5- crystal substances

6-gases

Order the following gases in order of the increase of their diffusion rate. Provide the answer as a sequence of numbers without spaces.

1) sulfur dioxide

2) ammonia

3) hydrogen chloride

4) sulfur hexafluoride

5) hydrogen

6) diborane

Choose correct statements. Warning! Choose all correct answers!

1- Equivalent of simple substance is always constant. 

2- Equivalent mass of compound can be both larger and smaller than molecular mass of compound. 

3- In reaction of formation of normal salt equivalent of acid can be equal to 1.

4- Equivalent of sulfuric acid can be equal 1/8.

5- Equivalent of oxide is always less than 1