ryancon
This page lists questions and answers that were posted by visitors named ryancon.
Questions
The following questions were asked by visitors named ryancon.
Tf (acetic acid) = 16.1°C Tf (with 3.00g of solute in 10.00mL of acetic acid) = - 2.5°C Use the data to calculate the molecular mass of the solute (Acetic acid: Kf = 3.9°C•kg/mol; D = 1.05 g/mL) After finding molality I was completely stuck on what to do...
7 years ago
AgNO3 + NaCl <--> AgCl + NaNO3 What happens when nitric acid (HNO3) is added to the reaction?
7 years ago
How would results from a kinetics lab differ if performed without a catalyst?
7 years ago
A student chemist used 2.0 x 10-3 M Fe(NO3)3 in 0.10 M HNO3 solution instead of 2.0 x 10-1 M Fe(NO3)3 in 0.10 M HNO3 solution in preparing the standard solutions. Explain how would this affect the experimental results. How would his/her value of Keq compa...
7 years ago
Explain with a chemical equation why the pH of the salt solution is or is not the same as pure water: NaCl, NaC2H3O2, NH4Cl We're working with salt and buffer solutions but the equations confuse me the most. Anything helps!!
7 years ago
"A sample of 21.50 g of KHT is mixed with 1.000 L of pure water. After stirring the mixture for 30 minutes, there is still solid at the bottom of the container. Calculate the mass of the remaining solid. Use the value of Ksp that you obtained in your expe...
7 years ago
We just had a lab where our objective was to find the molar mass of Copper using electrolysis. A question on my post lab asks: Would it make a difference if Cu(NO3)2, instead of CuSO4, we’re used in the copper half cells in this experiment? Why or why not...
6 years ago
Rank from highest to lowest acidity: V2O3, Ni2O3, MnO, ZnO, Cu2O I feel like I've tried everything and I know there is a periodic trend to figure it out but I still get the wrong answer. An explanation would be super helpful!!
6 years ago
Prove that "limit as n approaches infinity |x|^n/n! = 0 for all x" We are finishing up Maclaurin series but I'm still having a hard time working problems out. I have a quiz on these types of problems in a couple days so anything will be helpful!
6 years ago
"Cabbage leaves are coated with a hydrocarbon of molecular formula C29H60. What purpose might this hydrocarbon coating serve?" This is a question from a textbook. Anything helps!!
6 years ago
I need help naming these structures.. I get very confused when there are parentheses with a subscript so can I get an explanation on how to interpret them? Anything helps! 1. (CH3CH2CH2CH2)2C=CHCH3 2. (CH3)2C=CHCH2CH2CH2CH=C(CH3)2
6 years ago
Colorblindness is inherited as a sex-linked recessive disease. Let’s say an affected male marries a heterozygous female. What is the chance that they will have an affected child? Could any of their daughters be affected? Please use the letter “b” to indic...
6 years ago
Answers
The following answers were posted by visitors named ryancon.
Could you please explain the steps? I am still unsure about what I am doing...
7 years ago
Wow I did this thinking I did it wrong... After making my table and doing the calculations I ended up with 7.93 g/L from a Ksp of 1.18e-3. Does this sound right?
7 years ago
Using four electrodes (two copper in the electrolytic cell, one copper and one zinc in the galvanic cell), we put them in CuSO4 solution for 45 minutes to see a redox reaction occur while measuring milliamps. The milliamps went from 30.4 initially to 30.9...
6 years ago
Wouldn't I need to divide by 2 mol e^- to convert to moles of H^+?
6 years ago
Thanks for your response and writing it out definitely helped a lot. Would counting the number of C atoms present in the structure give the name of the structure (butane, pentane, etc.) or am I missing something?
6 years ago