Does 12.5 M NaOH have the same density as general NaOH? Im trying to convert my...
im trying to solve for change in thickness the formula in words is; compressibility= - (change in thickness/origional thickness)/ change in vertical effective stress. I have everything but change in thickness, but i need to convert to the same units. could use a little help. hers what I have: compressibility= 6x10^-8 M^2/N Origional thickness: 45 M (135 ft) change in vertical effective stress= lb/ft^2 Thanks for the help
im trying to print out my file I kept getting an error , i have to to use iterator and algorthim private: std::string name; std::list<practice> example; public: void Write(std::ostream& os) { os << name << std::endl; std::for_each(example.begin(),example.end(), [&os](int& i) { os << i << std::endl;//here os is not capture }); }
I need help trying to figure out how to solve for the bottom half of my table. Please show work so I can learn. Thanks! Data Table 1: Analysis of Alka-Seltzer Trial 1 Trial 2 Mass of acetic acid 4.97 g Density of acetic acid 1.00 g/mL 1.00 g/mL Concentration of acetic acid 0.88 M 0.88 M Mass of Alka-Seltzer 3.21 g 3.24 g Volume of NaOH, initial 0 mL 5.0 mL Volume of NaOH, final 0 mL 4.4 mL...
For a titration experiment: I am using 1.025 M of NaOH(aq) as my titrant. My titration solution is 4.0 g of potassium hydrogen tartrate, with 300 mL of distilled water. After 4 trials, my average NaOH used was 1.680 mL. I am having problems figuring out how to calculate my findings. Each trial started with 50 mL of potassium hydrogen tartrate solution, and 2 drops of phenophthalein. Then I added 1.680 mL of NaOH (on average) to get titration to...
Weak acid/strong base titration question: 21.80 mL of 0.1164 M NaOH (0.00253752 mol) is added to 20.00 mL of 0.127 M unknown weak acid HA (0.00254 mol). The resultant pH is 7.57. I am trying to calculate the Ka without the Henderson-Hasselbach equation but I cannot get an answer that matches my other calculated Ka values. Please help.
im
trying to solve for the remaining but im confused please help this
is experiment 25 Calorimetry
HNO B. Enthalpy (Heat) of Neutralization for an Acid-Base Reaction H Poting flendar HCI + NaOH uuemliojo Trial 1 Trial 2 1. Volume of acid (mL) 50 - 60 Site 2. Temperature of acid (C) ao 20" 3. Volume of NaOH (ml) 20 4. Temperature of NaOH (C) Trial 1 5. Exact molar concentration of NaOH (mOVL) 6. Maximum temperature from graph (°C)...
Trying to determine the molar weight and PKa values for an unknown
diprodic acid.
I have .9010 molar NAOH titrant I have a mass of Unknown acid
being .1101 g. Equivalence point of Steepest point on graph equals
22.5mL NAOH. Equivalence OH- is 2.027×10^ -2
moles.
question---I need help to convert moles of OH ion added to
initial moles diprotic acid H2A PH 12Approximately pka1 is
approximately 3.5 at 6.25 mL OH.
data-
NaOHmL / PH 2.5 3 3.50 7.50...
I’m so confused on how to do any of this.
Name Date General Chemistry I Lab CHE 1211 Data: Concentration of NaOH Trial Titration (to be used as practice) Initial burete eading4.0 ml Final burette reading 20.h m 22.om. Volume of NaOH used Repeat until 2 successful titrations are achieved. Titrations (to be used in calculations) K.Oml 0.bml 35.o mL 22.3 mL 38.5ml ↓ 30.6 mL45.0 mL 49.0 mL 35.5mL50.0 me 22.0mL H. m0 ml 1b.20 m 4.5ml Initial burette...
Given the following timed data, convert mL 0.04 M NaOH to concentration of HCl, [HCl]t, in 10 mL aliquots of the reaction of t-butyl chloride in isopropanol/water. Then convert [HCl]t to concentration of t-butyl chloride, [RX]t. Using a program such as Microsoft Excel, plot (Scatter Chart) time versus natural log of concentration of t-butyl chloride at time zero over concentration of t-butyl chloride at each time, ln([RX]0/[RX]t). Determine the slope of your plot as instructed in this video. The slope...
I dont know how to do this exercise please ignore my
answers
ME General Chemistry I Molarity of Acetic Acid in Vinegar: A Titration Experiment NaOH = 40.019/mols NaOH DATA AND CALCULATIONS STANDARDIZATION OF NaOH lesina Check the 2 (at least) trials O O O Check the 2 (at least) trials used to calculate the average molarity. Trial 1 Trial 2 Trial 3 Mass of KHP Moles of KHP 1991/ 37.50 m2 read - 1-0.72893 0 7599 0.75792- 16,59 Initial...