Syam

This page lists questions and answers that were posted by visitors named Syam.

Questions

The following questions were asked by visitors named Syam.

Concentrated hydrochloric acid has a purity of 36.0% by mass. The density of the concentrated of the acid is 1.19 g/mL.Determine the molar concentration of this acid..please show me the solution...

Commercial hydrobromic acid can be purchased as 40.0 % by mass 9f HBr. The density of this acid is 1.38 g m/L. Calculate the molality of this commercial acid..please show me the solution..thanks

A solution of ethanol has a concentration of 4.613 mol/L at 20ºC. The density of the solution is 0.9667 g m/L.. Calculate the molality of the solution..please show the solution..thanks a lot

Absolute value equation |1-X| = 2X-5

|X+4| = |3X+10|

Convert 1kwh to joules

How much ethanol must be used to prepared 150 mL 10% by volume?

A solution of acetic acid was prepared by mixing glacial acetic acid with water.The solution was 25% of acetic acid by volume.How much glacial axetic acid must be used to prepare 120 mL of desired volume?

Suggest why calcium compound produce a coloured flame but magnesium do not?

From equation x= A sin wt, prove that the acceleration of SHM is a= -w^2x w is omega actually.. 2.using relationship between velocity, v and displacement, x prove that v=w(A^2-x^2)^1/2

What are the orbital used in the formation of [COCL4]^2- ?explain this..

Why Mg2+ ion has smaller radius than Mg atom?

Two point charges of magnitude +40x10^-6C and -60x10^-6C are placed 50 cm apart. What is the distance from +40x10^-6C charge along the line joining the two point charges if the resultant potential is zero

Determine, (at a point 10.0cm from a point charge of 100x10^-6C) a. The electric potential b. Electric field strength

Two point charges of magnitude +3.0 nC and +2.0 nC respectively are placed 2.0cm apart. Calculate the resultant electric field strength at their midpont(where the positive test charge are place at the midpoint)

40E6/x-60E6/(0.5-x)=0.. Solve x..

Two point charges of +40x10^-6C and -60x10^-6 are placed 50 cm apart. What is the distance from +40x10^-6 charge along the line joining the two point charges if the resultant potential is zero.. Can you give me the exact formula to do this question and ex...

Show that y=|x-3|is not differentiable at x=3

Find the differentiation of the following function a) y=5x^4(x-7)^1/2 b) y=(2(x)^1/2-(3))/(x)^1/2+1

Differentiate the following function with respect to x a) ln((2x-1/1+x)^1/2)

Find second differentiation for function x^3=ycosx

(sin 4x cos 3x)^2 differentiate the following function

Find the first derivative of following function log5 (2x+1/3x-1)

Differentiate the following implicit dunction and find dy/dx ln (3xy)=2xy^2

Two capacitor 3.0 pico Farad and 6.0 pico Farad are connected in series. If the capacitor connected to a potential difference of 1000v, calculate a. Magnitude of the charge on each capacitor b. The potential difference across the capacitor

How to determine the direction of magnetic field?

How to change 450 A cm^-2 of current density to si units

2NO(g) + Cl2(g) --> 2NOCl(g) If the reaction is second order with reapect to NO and first order with respect to Cl2, a.write rate equation b. What is the order of chemical reaction?

Answers

The following answers were posted by visitors named Syam.

My browser cannot identified the link..

Yes. It is Co.. Sorry for my wrong

What is the exact formula to solve the question above?

For me to simplify the answer is the most difficult. Especially when meet fraction or with surd..

How do you change y= (1/2)( ln(2x-1) - ln(1+x) )

Why 6x become power of 2 at the end?

ln (3x) + ln (y) = 2xy^2 Is it need to separate in the bracket?

How to separate x and y for RHS

How you get (2/1) in the []?