Catalina

Hello, I'd like some feedback for a question I'm on.

1(a) Write a balanced reaction equation for a Lewis Acid with a Bronsted Acid of your choice. Indicate which of the species in your reaction is the Lewis Acid and which is the Bronsted Acid

NH3 + BF3 --> NH3BF3

Bronsted Acid + Lewis Acid

1(b) Write a balanced reaction equation for a Lewis Acid with a Bronsted Base of your choice. Indicate which of the species in your reaction is the Lewis Acid and which is the Bronsted Base

(CH3)3CCl + AlCl3 --> (CH3)3CClAlCl3

Bronsted Base + Lewis Acid

Note: Lewis Acid = Accepts e-

Bronsted Acid = H+ Donor

Bronsted Base = Acceptes H+

Did I do it correctly?

Any help is greatly appreciated. Thank you!

Hello,

I'm having a bit of trouble with a question involving Ksp

I got that the concentration of SO4^-2 is 9.37(mM) (but that's wrong)

The question goes as such...

A 275(mL) sample contains 0.0019(M) Chloride initially.

To determine Sulphate in this sample you titrate with 0.1(M) BaCl2.

The Ksp for BaSO4 is 1.1*10^-10.

If the endpoint is observed at 33(mL), what is the concentration of SO4^-2 in the original sample?

Any help is greatly appreciated!

Thank you in advance!

Hello, I'm having some trouble figuring out a question. Any help is appreciated.

Quantitatively sketch the titration curve for 100mL of 0.01585 molar HCl with 0.1 molar NaOH. You can ignore dilution. The pKA value for HCl is 4.75.

(Vo)Volume 1 = 0?

pH #1 = 1.79?

(1/2Ve)Volume 2 =

pH #2 =

(Ve)Volume 3 =

pH #3 = 4.75?

(2Ve)Volume 4 =

pH #4 =

Ve = Volume at Equivalence

I'm fine for the sketching part, it's just figuring out the values

I'm mainly just confused on how this pKa is used.

Once again thank you for any help!

Hello, I'm currently stuck trying to figure out this Differential Equation question.

The question goes as such

Find y as a function of x if

y‴ − 14y″ + 48y′ = 70e^x,

y(0)=25, y′(0)=12, y″(0)=25.

y(x)=?

Any help is greatly appreciated. Thank you in advance!

Hello, I'm currently stuck trying to figure out this Differential Equation question.

The question goes as such

Find y as a function of x if

y‴ − 14y″ + 48y′ = 70e^x,

y(0)=25, y′(0)=12, y″(0)=25.

Any help is greatly appreciated. Thank you in advance!

Hello, I'm currently working on a Differential Equation Question.

The question goes as such

Find y as a function of t if

49y″−112y′+80y=0,

y(3)=9, y′(3)=4.

y=?

Any help is greatly appreciated. Thank you in advance!

Hello, currently I'm on my last attempt on the following question.

Consider the function

f(x,y) =(x^2)y +y^3 - 48y

f has __ at 4sqrt(3), 0)

f has __ at (0,0)

f has __ at (0, -4)

f has __ at (4sqrt(3), 0)

f has __ at (0,4)

I have tried (respectively)

Saddle Saddle

Critical No Critical Point

Minimum Minimum

Saddle Saddle

Maximum Maximum

The option are "Minimum, Maximum, Some Critical Point, No Critical Point, Saddle Point or ?"

Any help is greatly appreciated.

Thank you in advance!

Greetings and thank you in advance for reading my question. 

At the moment I've started to get a grasp of how to tackle differential equations (that being separate variables, integrate, solve for C, substitute and rearrange), but these two questions have stumped me for the past 2 hours 

The two questions are 

1) Find the solution of the differential equation that satisfies the given initial condition. 

y'(x) = sqrt[-2(y(x))+17] , y(5) = 4 

y(x) = ? 

& 

2) What is the equation of the curve whose y-intercept is 4 and it's slope at any point is (dy/dx) = 9yx^2 

y(x) = ? 

My Attempts for: 

1) y(x) = sqrt[(x^2)/2-42)] , y(x) = sqrt[(x^2)/2 -8] 

2) y(x) = 4.5x +6 

(all answers were wrong but I thought I'd at-least show that I tried to solve them) 

Any help would be greatly appreciated, whether that be a hint, a guideline or a step in the right direction.

Hello, recently I've been struggling with 2 questions. I know that the equations are separable, and once separable you have to integrate both sides to find C. Then sub C into the equation and solve for the variable. But so far I'm stuck on these two (I'm getting x(t) = 10 and y = sqrt[((x^2)-144)/2]

These are the two relevant questions in order

Find the solution of the differential equation that satisfies the given initial condition

(dx/dt) = (3/x) , x(0) = 5

Find: x(t) =

(dy/dx) + (y/4) = 0 , y(0) = 14

Find: y =

Any help would be appreciated, whether that be an explanation, a hint.

Thank you

Hello, I've been having some trouble on Differential Equations in Calc class. Any help is appreciated for any of the questions down below (answers, hints, explanation).

Find the solution of the differential equation that satisfies the given initial condition.

1) 6yy' = x, y(6) = 3

2) dx/dt = 3/x, x(0) = 5

3) dy/dt = 8y^5, y(0) = 1

4 dy/dx +y/4 = 0, y(0) = 14

5) [(x^2)/(y^2-7)](dy/dx) = 1/2y, y(1) = sqrt(8)

6) y'(x) = sqrt[-2y(x)+17], y(5) = 4

7) du/dt = e^(2.1t-2.2u), u(0) = 4

Once again, any and all help is greatly appreciated!

Calculate the mean free path of air molecules at a pressure of 5.00×10−13 atm and a temperature of 292 K .

(This pressure is readily attainable in the laboratory.)

Model the air molecules as spheres with a radius of 2.00×10−10 m.

Any help would be greatly appreciated.

Thank you in advance

A light wire is tightly stretched with tension F. Transverse traveling waves of amplitude A and wavelength λ1 carry average powerPav,1 = 0.700 W .

If the wavelength of the waves is doubled, so λ2 = 2λ1 while the tension F and amplitude A are not altered, what then is the average power Pav,2 carried by the waves?

Been stuck on this problem for quite some time and I m not sure where to start. Any help is appreciated.

Thank you in advanced