Recent content by hockeyfghts5

Homework Statement One percent of a measured amount of chlorine gas escapes through a tiny hole in 33 sec. One percent of a unknown gas escapes under the same conditions in 75.2 sec. Calculate the molar mass of the unknown gas in g/mol. I can't seem to figure out how to do this so if some...

Homework Statement Using your knowledge of the octet rule and the duet rule, determine the missing subscript (??) for the compound below. NOCl?? What is a good way of solving this type of equation and what is the answer. I figure you need to draw a Lewis dot structure but knowing...

do i take the ratio of of each of the given grams?

Homework Statement Question 1 How would your solve this? I balanced it now i am stuck. Same with the second problem. 2 NaOH + H2SO4 = Na2SO4 + 2 H2O If 14.56 g of NaOH was reacted with 13.49 g of H2SO4, how many grams of water would be produced. (Hint What is the limiting reagent?) Question 2...

thanks

how would you set this up to solve this problem A newly discovered element occurs naturally as the two isotopes: 108X and 114X. In nature 65.8 % of is the isotope 108X and the remaining percentage is 114X. What is the mass number for element X.

Thanks, that makes sense.

so would you just plug zero for x and the simplify the problem which would give 1?

Homework Statement \frac{x}{x-5} lim x\rightarrow\infty 2. The attempt at a solution \frac{x}{x-5} \equiv \frac{1}{1-\frac{5}{x}} lim x\rightarrow\infty how do i know what to plug into x to solve the problem. by the way it equals 1

-2/3 , opps i wrote the problem down wrong so it is actually x3-6x2+11x - 6 x3+4x2-19x + 14

well, i used the method of substitution and if my algebra is correct i came out with -6/7 but in my solutions manual that answer is incorrect, then i try to factor the top but it didn't seem to factor out. although, i haven't took college algebra in awhile, so i am a little rusty on my factoring.

Homework Statement lim x-> -1 x3-6x2+11x - 6 x3-4x2+19x + 14 Homework Equations The Attempt at a Solution

thanks, so i have another question if someone can help me. lim x3-62+11x-6 x->-1 x3-4x2-19x +14 i can't seem how to factor the top out if i even need to do that or the bottom

Homework Statement can u factor x2+4 and can't seem to remember the the difference of cubes and isn't there another special cubed theorem. Homework Equations The Attempt at a Solution

My teacher told me it was best to learn in words. can anyone help me with the correct why to write these. Let n be positive interger, K be a constant, and f and g be function that have limits at C. then 1. lim k = k x-> c 2. lim x= c x-> c 3. lim kf(x) = k lim f(x) x-> c...