(a)Given the points P(3,5),Q(8,10)and R(8,0),find the equation of a line which is perpendicular to QR and passes through the mid point of QR. (b)The line 2x+3y=2 and 7x-3y=10 intersect at A . Find the equation of the line which passes through A and is perpendicular to the line...
how many moles of nh3 are produced from 16 grams of n2 ?
1- Calculate the equilibrium concentration for H+, HSO4- and SO4^2- , given a .150M H2SO4 solution. the Ka for HSO4- is 1.20*10^-2
CHEM HELP PLEASE
1- the vinegar soltion sold in the store is about 5% acetic acid. Assuming that the solution has a density of 1.01 g/mL, calculate the pH of vinegar.
Q 4_1? 4_2? 4_3? plz help.
problem E2_2 Strain, boundary conditions, displacement and elongation: Part I Plz help.
what is the mole ratio of oxygen to water
plz help problem 4_1?