Questions and answers by

demolitrate

Questions (4)

solve the following eq. [0<=x<=360]2cos(3x-72)=1
1. 5 answers
2. 672 views
why the ray reflected by the prism is brighter than that by the plane mirror?
1. 1 answer
2. 613 views
why the ray reflected by the prism is brighter than that by the plane mirror?
1. 1 answer
2. 378 views
Why metal is a good THERMAL conductor but plastic is a worse conductor than metal? Is it also due to the delocalised electrons
1. 2 answers
2. 540 views

but 3x mean it has turned 360 degree three times, how about the other four ans?
50000(1+5/100)[1+(3/12)/100]^(2*12)
you should know the formular to calculate all the question of the chapter of 'Reacting masses'. eg. mass / molar mass=no of mole no of mole*avagadros=no of particles ...and so on..
You should calculate it by using the percentage by mass of the hydrogen atoms. 3.5mole of glucose is 3.5(12*6+1*6+16*6)g =609g ==>ans:[(1*6)/(12*6+1*6+16*6)]*609=21g ans is c.

Ask a New Question