Make a dilution series to get to 1:100. Start with making 1:10 dilution by adding 1mL of sample and 9mL of diluent, now continue the series to get to 1:100.
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Make a dilution series to get to 1:100. Start with making 1:10 dilution by adding 1mL of sample and 9mL of diluent, now continue the series to get to 1:100.
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- Current Attempt in Progress From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copper at the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activation energy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate the length of time required for 50% recrystallization at room temperature, 20°C (293 K). (a) i kJ/mol (b) i daysPipet (1.0x10^1) mL of a sample solution into a 250.00 mL volumetric flask and dilute to the mark with distilled water. Then, pipet 2 mL of this diluted solution into a 50.00 mL volumetric flask and dilute to the mark with distilled water. What is the dilution factor of the final solution? (Note: keep one decimal in your answer.)< STARTING AMOUNT X A brine solution is 3.50% NaCl by mass. Given that its density is 1.071 g/mL , determine the quantity of liters of solution that contains 5.00 moles of NaCl 5.00 ADD FACTOR 0.1 *( ) 3.50 10 35.45 Question 29 of 33 1.071 0.01 8.03 x 1022 1000 100 ANSWER 7.80 22.99 0.0156 L solution g NaCl/mL g solution mL solution kg solution g NaCl/g solution 58.44 6.022 x 1023 0.0780 moles of NaCl mol NaCl RESET 0.001 2 1 g NaCl 1.56
- Make a dilution series to get to 1:100. Start with making 1:10 dilution by adding 1mL of sample and 9mL of diluent, now continue the series to get to 1:100"Determine the molarity of a solution that contains 15.50 mL of glycerol C3H8O3, d = 1.265 g/mL) in 225.0 mL. Make sure to show your work clearly and to the correct number of significant figures". *Please show step-by-step, thank you in advance!You are given a concentrated stock solution of 3.0 M sucrose, and you’re asked to do a serial dilution of 1:25, 1:10, and 1:5. What is the final concentration of sucrose (in mM) you achieve after these dilutions. Show your unit conversions step by step
- 2. A serum is diluted 1:20 then 2 parts of the resulting dilution is added to 40 parts saline. Then 3 parts of the last dilution was added to saline to have a total volume of 6 parts. What is the final dilution?3. While determining the volume during this experiment (Part II), if the total volume of the flask were incorrectly reported as 125 mL, how would this error affect the calculated molar mass of the unknown volatile liquid? Explain. MacBook Air 80 DII F3 F4 F5 F6 F7 F8 F9 F10 & * 4 5 6 7 8 R Y * 00Solution 1 is diluted by adding 519 microliters of Solution 1 to 5 mL of Solution 2. What is the dilution of Solution 1? Report your answer in standard decimal notation rounded to 2 decimal places. Include trailing zeros so that two decimal points are reported. For example, 500 μL added to 5 mL would be a 0.09 dilution or 50 μL added to 4.5 mL would be a 0.10 dilution.
- 1. You are working with a colleague to measure the carbonate chemistry of a set of water samples. Unfortunately your colleague is a bit sloppy, and when you look at the data, you realize there must have been some errors in the measurements. Blank cells in the table below mean your colleague didn't collect data for that species in that sample. For each sample (#1-6), EITHER explain why at least some measurements for that sample must be in error OR fill in the missing data with reasonable values. (Note: you can assume the precision of the measurements is ±1mM, so inconsistencies below that level do not necessarily indicate errors.) Sample pH [H2CO3*] (MM) [HCO3] (mM) [CO3²-] (MM) Total C (mM) 1 12.0 195 199 2 3.1 155 520 3 1000 100 1101 4 7.4 317 317 50 CO 248 248 1675 6 8.3 97 402$ F4 An aqueous solution of 2.87 M hydrochloric acid, HCl, has a density of 1.05 g/mL. The percent by mass of HCl in the solution is %. Submit Answer % 5 T G F5 Retry Entire Group 9 more group attempts remaining 6 Cengage Learning | Cengage Technical Support Y H [Review Topics] [References] Use the References to access important values if needed for this question. MacBook Air F6 & 7 gilinent-take F7 8 00 1 DII FB K ( 9 F9 0 L ) O A F10 P Chapter Previous + 11 X Next ☐ Save and Exit OWLY S delesSolve for the molar volume (in ml/mol) for the following chemicals below. Show complete solution, round-off your final answer to the 3rd decimal place then highlight. Use the following atomic weights to solve for the molecular weight (g/mol) of each compound: H=1; C=12 ; N=14 ; O=16 ; Na=23 ; P=31; Cl=351. Ammonia, density: 0.73 kg/m32. Sodium hypoclorite, density: 11 g/cm33. Phosphoric acid, density: 1.88 g/ml