836737 - Ryan Adams 2

4. You have been given a 5% (w/v) glucose solution to prepare a seven-tube serial dilution for standard curve construction. Assuming you used a five-fold dilution, what is the concentration of the 5th tube in the series? (Fw of glucose = 180 g/mol). A. 16.000% (w/v) B. 1.600% (w/v) C. 0.1600% (w/v) D 0.0160% (w/v) E. 0.0016% (w/v) 5mg 5y/1ooml 0.28M X

Table of chemicals and reagents with their physicochemical properties (name, molecular formula, molecular weight, pKa, melting point, boiling point, etc.) Write a short outline or a flow diagram of the procedure List and safety issues Read and understand the MSDS information for each chemical used in this practical Experimental procedure Please do not scratch the clear sides of the UV cuvettes as this will invalidate your results. Part 1: Preparation of a calibration curve A calibration curve should be constructed using at least five concentrations of the pure paracetamol standard supplied in the range 3-15 ug/mL as follows: Weigh about 150 mg of paracetamol accurately and transfer to a 200 mL volumetric flask. Add 50 mL of o.1 M NaOH and dilute to about 100 mL with deionised water (DI). Shake and make up to volume with DI water. Dilute 10 mL of the resulting solution to 100 mL (volumetric flask) with DI water (= stock solution). Prepare standard solutions containing 3, 6, 9, 12 and 15…

Potassium ion concentration in the interstitial fluid is 5 mEq/L. What milligrams percent concentration is this? _________mg %

22:12 Question 23 of 30 Submit How many grams of a solution that is 5.2 % sucrose by mass are needed to obtain 18 g of sucrose X STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 18 100 g solution 3.5 6.022 x 1023 %m sucrose 0.052 5.2 g sucrose 94 350 0.0094 0.94 1 Tap here or pull up for additional resources

This Quiz VWill Be izzes > Cell & Molecular Biology competency exam ell & Molecular Biology competency exam arted: Feb 13 at 7:38pm Quiz Instructions Question 4 How many grams of NaOH is in 1.7 L of 1.4 Molar solution? « Previous No new data to save. Last checked at 8:08pr

MX (Ksp = 2.42x10-11) Express your answer in moles per liter. S = Submit Part B S = IVE ΑΣΦ PbCl2 (Ksp = 1.17x10-5) Express your answer in moles per liter. Part C Request Answer Submit Request Answer S = 15| ΑΣΦ Ca(OH)2 (Ksp = 4.68x10-6) Express your answer in moles per liter. IVE ΑΣΦ Submit Request Answer www wwwww ? ? ? M M M

None

Attempts done: 0/1 Full Screen Accessibility The Ksp of the phosphate fertilizer CaHPO4 2H20 is 2.7 x 10-7 at 25°C. The molar concentration of a saturated solution is! mol / L. The mass of the compound that will dissolve in 3.0 L of water at this temperature is grams. : 8.9 x 10-2 :: 5.2 x 10-4 :: 3.3 x 10-1 :: 1.4 x 10-7 :: 2.9 x 10-1 :: 6.4 x 10 -3 Check Answer Vou can check vour answer 4 more times hefore the question is locked • Previous MacBook Air

Answer number 8

Assay 5 KB) Page of 2 - ZOOM + 3. If a researcher starts with 3.00 mL of a 4.50 mg/mL protein solution and adds 10.0 mL of water, what is the amount (mg) of protein in the diluted solution? Next Previous awe

How do i compute for the mg of ascorbic acid in the peach solution??

4. What weight (in grams) of lactose (C12H22O11, MW=342 g/mole) is required to prepare each of the following solutions: a. 100 mL, 7% (w/v) b. 500 mL, 0.1 M c. 250 mL, 2 mM d. 1000 mL, 100 ppm

Please answser 18-19-20

A sample of rainwater was collected from four separate locations across theMetroplex. Each sample was measured once by two separate methods for the presence ofsulfate. Determine whether the two methods are equivalent with respect to giving thesame answer for [SO42-].

12. Find the final concentration of BAK as a ratio strength (w/v), when 80 mL of BAK 1:500 (w/v) solution, 1 L of BAK 5,000 PPM (w/v), and 25 mL of BAK 0.6 % (w/v) solution are mixed.

Directions are in the attached image. Thank you!

C. Electrolytes in Body Fluids 1. Type of IV Solution 5% Isolute P (mEa/L) Plasnalyte (mEg/L) Lactated Ringer's (mEg/L) Nal+ = 130 Klt = 4 Ca2+ = 3 Nal+ = 25 K+ = 20 Nal+ = 140 Kl+ = 5 2. Cations %3D %3D Mg+ = 3 Mg2+ = 3 CI- = 22 HPO- =3 Acl- = 23 CI- = 98 Glu'-= 23 Acl- = 27 3. Anions CI'- = 109 %3D HPO = 28 %3D %3D 4. Total Charge of Cations (+) 137 137 5. Total Charge of Anions (-) 6. Sum of the Charges Copyright 2014 Pearson Education, Inc.

What is the molarity of an aqueous solution that contains 0.0720 g CaH.O2 per gram of solution . The density of the solution is 1.04 g/mL STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 62.08 0.001 1.21 x 10-3 6.022 x 1023 1.04 1.12 1 1.21 4650 0.0720 1000 g solution/mL g C2HO2 g solution mol C2H6O2 g C:H6O2/g solution g C2H6O2/mol L solution M C2H&O2 mL solution

Find The Molecular Weight, Equivalent Weight, & Milliequivalent Weight of the item.

Prepare 500g IV pack of 5% m/m KCI. Write procedure how to do this

Need help finding the concentrations for each solution

ANSWER: 4.36 to 7.5 mL    SHOW SOLUTION ON HOW TO ARRIVE TO THE GIVEN ANSWER THANK YOU.

Using the following choices,  determine which will result in a brightly and dimly lit light bulb when subjected to the conductivity test. a. Mixture of 10.0 mL 1.0 M Mg(OH)2 and 10.0 mL 1.0 M HNO3 b. 70% (v/v) ethanol c. 1.0 M citric acid d. Glacial acetic acid   Brightly: _________ Dimly: _________