1. Solve the following queries. Make sure you show full procedure using conversion factors if applicable a) Three solutions were produced: 50 g of C4H8O4 in 2 L water, 50 g of C8H1407 in 2 L water, and 50 g of C12H20O10 in 2 L solution. What are the molalities of these solutions? b) A sucrose solution was prepared by dissolving 13.5 g C12H22O11 in sufficient water to make exactly 100 mL, which was then found to have a density of 1.050 g/mL. Compute the molar concentration and the molality of the solution. c) What is the volume of concentrated H₂SO4 (density 1.835 g/cm³, 93.2% H₂SO4 by weight) required to make up 500mL of 3.00N acid solution.

vacuum filtration uses suction to speed up the filtration process?

Crossword Puzzle 6 10 4 13 15 5 11 12 3 7 14 2 Name: 1 Across 1. Glassware. Erlenmeyer base, narrow opening. 3. Measure mass on a walks on a 4. If there's a outside in designated area. 10. You may not 11. Never beam. stock bottle. 7. Heating test tube over flame? Point opening from your face and others. 13. Always wear lab. 15. Dispose of 8. Spilled an irritant on skin or in eye? Flush for minutes. or drink in the lab. unused chemicals to a Down 1. The 2. 3. 5. 6. wide Gymnast exit quickly, and meet -toe shoes in the in the proper container. Before leaving the lab, area. hoods pull in noxious vapors. your work Glassware with a wide mouth, used to transport materials. Also a Muppet. Someone hurt? Notify your immediately. Pull back long. when working with flames. 9. Measure volumes with a cylinder. Also, what the class of 2023 did. 12. Always wear safety glasses or when anyone is working in the lab. 14. Be covered from shoulders to Also, "head, shoulders, and toes." 15. Trying to smell a…

Mean, standard deviation, Coefficient variable, and 95% confidence limits of HCl molarity's *0.08883M * 0.08743M * 0.08790M

Volumetric pipettes are designed to deliver a precise amount of liquid, but only if you a. submerge the end of the pipette into a solution you are delivering. b. allow the pipette to drain freely, and leave any residual solution in the pipette. c. hold the pipette at a 45 degree angle and ensure that all the liquid is delivered.

ALEKS - Alec Nema - Learn + > CA A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr7j8P3jH-IvUrTNdLZh5A8CnG03PBGuXr8iCPa7ZMmym9y71gFEGu Weather & Soil CH... 6 Online Tutoring C 400 Request Heade... E Apps Sprouts Academy. O CHEMICAL BONDING Identifying a molecule with one central atom from its 3D shape Check the box next to each molecule on the right that has the shape of the model molecule on the left: molecules model (check all that apply) OCH,0 O CH, You can drag O NH, O CH,Cl O None of the above

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A lower and/or broader melting point range for a compound after recrystallization most likely results from ________.     insoluble impurities such as dust or lint     the material still being wet with the recrystallization solvent     the compound decomposing in the heated solvent     the compound undergoing a chemical reaction with the solvent

|| Interconverting compound Sl units V Convert the following measurement. 9.6 × 10 G-7189.jpg -6 Explanation 1 kg moldL Check 1 g mol. L x10 X

dec. Im Table 1.5 Appropriate use of a pipette. Type (P1000, P200, P20, or other) P200 or P100 085 10 1 3 8 2 4 5 6 7 9 Volume Required (UL) 25 12.5 300 5 1000 958 150.2 1.5 7000 1250 Show Transcribed Text P20 P1000 P200 PIO 5mL P1000 0 30 ere. P1000 P200 P2 or PIO 10mL Ser. Ap 5mL Ser. Pip P1000 Reading on Pipette - moo 050 - O 09 50 Fill Table 1.5 with the most appropriate equipment to measure the listed volume. There may be more than one possible answer for some. Choose the best option/combination from p20, p200, and p1000 or serological pipette. (We use 5 ml., 10 mL and 25 mL serological pipettes in the lab.)