# Posts by khela

Total # Posts: 11

**chemistry**

0.361g of an unknown liquid occupied a volume of 250.0 ml at 758mm Hg pressure and 100 degrees Celsius. what is the molar mass?

*November 9, 2010*

**chemistry**

0.361g of an unknown liquid occupied a volume of 250.0 ml Hg pressure and 100 degrees celcius. what is the molar mass?

*November 8, 2010*

**maths**

Find the x-coordinates of all points on the curve y=2sin-sin^2x at which the tangent line is horizontal.

*October 29, 2010*

**maths**

no u cant

*October 28, 2010*

**maths**

find the lim (cos x-1)/ (sin 2x) x->0

*October 28, 2010*

**maths**

find a and b such that lim (square root ax + b) - 2/ x = 3 x->0

*October 28, 2010*

**maths**

the first option

*October 28, 2010*

**maths**

find the limit of lim sin(x-1)/(x^2 + x - 2) x->1 without using l'hopitals rule

*October 28, 2010*

**maths**

find the limit of lim sin(x-1)/(x^2 + x - 2) x->1

*October 28, 2010*

**math**

find the points to the curve y=(cos x)/ (2 + sin x) at which the tangent is horizontal... can you explain how get the answer thoroughly and step by step...

*October 28, 2010*

**chemistry**

Am doing a lab report on the determination of the product of a redox reaction: the reaction of bromate and hydroxylammonium ions. here is the lab Experiment: In this experiment you will determine the equation of a redox reaction by the use of experimental data. This is a ...

*October 26, 2010*

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