Percent Yield

Diborane, B_(2)H_(6) , canbe prepared by the reaction: 3NaBH_(4) + 4BF_(3) rightarrow 3NaBF_(4) + 2B_(2)H_(6) In this reaction has a 70 percent yield, how many moles of NaBH_(4) should be used with excess BH_(3) in order to obtain 0.200 mol of B_(2)H_(6) ?

Percentage Yield |Questions |Summary

Questions|Percentage Yield|Summary

If the height of a cylinder is increased by 15 percent and the radius of its base is decreased by 10 percent then by what percent will its curved surface area change? (a) 3.5 percent decrease (b) 3.5 percent increase (c) 5 percent decrease (d) 5percent increase

At what rate percent per annum will a sum of Rs 4000 yield compound interest of Rs 410 in 2 years?

at what rate percent per annum will sum of Rs 4000 yield Rs1324 as compound interest in 3 years

Percent as a ratio

Percent as a fraction