Other Chemistry Answers

How many grams of beryllium BeCl 2 are needed to make 125ml of 10 % solutions

Convert 4.51 x 10²³ molecules to C₂H₆ to moles

Sucrose, C12H22O11 (table sugar), has a melting point of about 185 °C. It has poor

electrical conductance both as a solid and as a liquid. 

Diamond and graphite are both allotropes of carbon. These minerals chemically consist

of carbon atoms with different physical properties. The atoms consisting of carbon atoms

in that of the diamond and graphite are held together by strong covalent bonds with

different arrangements. The illustrations below shows the structure of diamond (right side)

and graphite (left side). Spot any difference in the bonding behavior of the carbon atoms

in the two forms. Which is stronger, diamond or graphite? And Why?

The density of the lightest metal, lithium (Li), is 5.34 3 102 kg/m 3 . Convert the density to g/cm 3

For a particular lab experiment, you need 150 mL of a 2.50 M solution of ammonium nitrate. How many grams of NH₄NO₃ will you need for the solution?

You have a 22 step staircase In your house and each step Is 15 cm tall. If you

climb the staircase approximately ten time

s per day, what vertical distance do you

climb each week? (Show answer in meters)

Calculate the net calorific value of a coal sample having the following composition:

C=80%, H=5%, O=4%, N=3%, S=3.5% and ash=5%.

how many grams are contained in 1.52 X 10^36 particles of MgO

Q is a fictitious compound. If the molar mass of the compound is 21.96grams/mol and you have 6.21 grams of Q, How many moles is this?