king of kings

a 1.05 g sample of a mixture of NaCl (MW 58.45) and NaNO2 (MW 69.01) is reacted with excess sulfamic acid. The sample is 40.00% by mass NaNO2. Only NO21- reacts according to the equation below. The nitrogen gas that is formed is collected over water at a temperature of 22.0C and the barometric pressure on the day of the experiment was 750.0 mm Hg. The vapor pressure of water at 22.0C is 19.8 mm Hg. What is the volume of nitrogen collected?

Oxalic acid (H2C2O4•2H2O, MW= 126.08g/mol) is titrated with NaOH (MW= 39.997g/mol) to reach a pink endpoint. If it takes 20.40mL of NaOH to titrate 0.1893g of oxalic acid, what with the concentration of the NaOH?

If 30.00 g of water at 280.0 K is mixed with 50.00 g of water at 330.0 K, what is the final temperature of the mixture? The specific heat of water is 4.186 J/K-g.

generate a random vector of 20 elements from N(0,1) denote it by x

change mean and variance of x to N(5,2) denote it by y

take odd eleme nts of y to form a new vector z

Plot a vector containing 1000 random numbers chosen from a uniform

distribution on [0; 1].

i have to find the convolution of rect and sinc functions.

t=-10:0.01:10;

x=rectpuls(t/5);

h=4*sinc(4*t);

y=conv(x,h);

when i run the last statement ..i get an error saying :

??? Error using ==> conv2

First and second arguments must be single

or double.

I need help in this. I don't know how to rectify it

Design a double-stub shunt tuner to match a load impedance ZL = 20 – j60 Ω to an Q1. 80 Ω line. The stubs are to be open-circuited stubs, and are spaced λ/8 apart.

if one could help me with the detailed steps or give me links on how to approach this question. it would be awesome!

while filtering a precipitate, what steps are taken to ensure complete transfer of suspended material from the beaker to the filter paper with minimal loss?

what are the specific set of observations for a homogenous and heterogeneous mixture?

i have to plot a triangular pulse using M file for :

s1(t) = t+1 (-1<= t <= 0)

-t+1 (0<= t <= 1)

0, otherwise

can anyone help me with a link for amplitude spectrum for sinc(t) or if not you could describe how it looks when 't' ranges from -5 to 5.

i have a vector and i need to plot only the second third of the vector. how do i do it..i know i need to use the commands

vodd =v(r);

but what should 'r' be denoted as

Assume that you need to connect a TV antenna with ZA = 100 Ohms to a coaxial cable having Z0=75 Ohms. Use a λ/4 transformer to match these two devices. Find the characteristic impedance of the λ/4 line.

i need to create and plot vector y that contains half the number of elements of vector x. (vector x is 0:0.02:2). all the elements in 'y' should be zero.

i am havin trouble in the plotting part.

i need to create and plot vector y that contains half the number of elements of vector x. (vector x is 0:0.02:2). all the elements in 'y' should be zero.

i am havin trouble in the plotting part.

this is for my essay....please give reasons so that i can make use of them in my essay !