Jillian_Melick_Lab08_Feeding_Dairy_Cattle

Find the Final volume of buret (mL) and the Concentration of NaOH (M )

3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solution is water. In a hardware store, you can buy industria strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume o vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below. Volcano # 1 Volume of gas produced (mL.) vs. Time (s) for Volcano #1 Time Volume of gas (s) produced (ml) 60 E 50 10 20 30 25 8 40 38 46 30 20 Volume of gas produced (ml) 40 50 50 60 52 of 10 53 20 40 60 80 Time (s) Volcano # 2 Volume of gas Volume of gas produced…

Pls help ASAP ON ALL ASKED QUESTIONS PLS PLS

Pls help ASAP

A 1:20 dilution is done with a 0.2500 M Na,SO, solution. What is the concentration of the diluted solution ? A. 0.5000 M B. 0.0500 M C. 0.1250 M D. 0.01250 M

Based on a grade 11 chemistry student, answer the following questions: Use the data below to evaluate whether nitrates or phosphates could have been involved in the fish kill. Which month had the highest river water temperature?    2. Which month had the lowest river water temperature?   3. How would the temperature of the water likely affect the solubility of dissolved solid solutes?   4. Which month had the most rainfall?   5. Which month had the least rainfall?    6. In which months would you expect to have more runoff from the fields to the river?   7. In which months would you expect more dissolved solutes in the water? Explain.   8. The fish kill occurred in December.  a. What was the average water temperature and rainfall for November and December?  b. What would you expect farmland to look like during this month?  c. Would you expect much fertilizer runoff during these months? Why?   9. How do nitrates and phosphates generally cause fish kills? (Look back at your previous…

Name Chem Section Data Sheet determination 23°C 23°C 25°C temperature of filtered KHT solution, °C 0.04m concentration of NaOH solution, mol L- 0.04 m 0.04m KHT solution 14.9 49-5 final buret reading, mL initial buret reading, mL 49.9 volume of KHT used, mL NaOH solution 28 final buret reading, mL 10 49.8 १.१ 49.7 initial buret reading, mL 50 40mL volume of NaOH used, mL number of moles of NaOH used 0014 0014 number of moles of HT titrated .04 [HT] in KHT solution, mol L- 1.42 1.142 1.142 [K*] in KHT solution, mol L-1 solubility of KHT, mol L-1 average solubility of KHT, mol L- Ksp average Ksp

1. 0.5 liters of saltwater having a chloride concentration of 27,500 mg/L is added to 10 liters of NYC tap water having a chloride concentration of 10.0 mg/L. a. Draw a diagram and write the appropriate mass balance equation. b. Calculate the concentration of chloride in the mixture. c. Would the chloride concentration in the mixture meet the NYS Department of Health Maximum Contaminant Level (MCL) of 250 mg/L?

C. 92.3 m d. 226 mL 4. Solution B was prepared from solution A as shown below. The concentration of solution B is: 2. 2.00 M b. 2.00 x 10-3 C. 8.00 M d. 8.00 x 10-3 هایی ناخذ الكيو ستة آلية deez 2.00 ml A 500.00 ml M = 2.00 M X 500.00 ml M = ??

4

Isotonic saline solution is 0.154 M NaCl(aq). What is the solubility of AgCl (Ksp = 1.8 × 10−10) in such a solution? Show your work.     a. 2.8 × 10−11 M   b. 1.2 × 10−9 M   c. 5.3 × 10−6 M   d. 0.077 M   e. 3.4 × 10−5 M

QUESTION 31 Strong group cohesiveness can be a leadership A. Substitute B. Neutralizer C. Bolth A and B above D. None of above QUESTION 32 One of the reasons that make PFP (Pay-for-performance) plans fail is that employees do not believe that their performance will be rewarded. According to the Expectancy Theory of Motivation, this is due to........ A. Low Valence B. Weak Instrumentality link C. Weak Expectancy link D. None of Above QUESTION 33 Performance management/Compensation are organizational practices based on.... A. Maslow's Need Theory B. Goal Setting Theory C. Social Learning Theory D. Equity theory E. Expectancy theory

A 1.2525 g sample of canned tuna was analyzed by the Kjeldahl method: 30.25 mL of 0.1200 N HCl was required to titrate the liberated ammonia. Calculate the % N in the sample. a. 3.25 % b. 5.32 % c. 4.06 % d. 7.46 %

Creating a saltwater solution (as shown below) is a... NaCl(s) --> NaCl(aq) 1. physical change 2. chemical change 3. nonsensical change 4. biological change

What volume (in mL) of 0.0887 M MgF2 solution is needed to make 275.0 mL of 0.0224 M MgF2 solution? McVc=MdVd A.10.9 mL B.91.8 mL C.14.4 mL D.72.3 mL E.69.4 mL

‘’Concentrated’’ sulfuric acid solution is 95% sulfuric acid by mass (and the remainder water) and has a density of 1.64 gr/mL. ( Molar mass of H2SO4= 98 gr/mol ) What is the molarity of concentrated sulfuric acid solution? a. 18 M  b. 12 M c. 16M d. 9M

Can I please get all final concentrations please!