Which of the following is NOT a concentration?
21% oxygen
104 bacteria/mL
20 mg NaCl
ten grams glucose per liter
Which of the following is NOT a concentration? 21% oxygen 104 bacteria/mL 20 mg NaCl ten...
< Question 21 of 31 What NaCl concentration results when 284 mL of a 0.780 M NaCl solution is mixed with 497 mL of a 0.440 M NaCl solution? concentration:
Drug A has a concentration of 230 mg/mL Drug B has a concentration of 0.5 g/2 mL Calculate the strength of each drug as a percentage (use grams per milliliter). Which drug is stronger? Be sure to show your work.
A technologist is ask to prepare 100 mL of a 5% (v/v) concentration of sodium hypochloride. How much solute should they add to the concentrated sodium hypochloride? A CLS needs to make a 1 to 10 dilution with a total volume of 100.0 mu L. How many mu L of patient serum must be used to make this dilution? Consider if you wanted to make 1.00 L of a 0.200 M solution of Na3PO4 (163.94 g). How many grams of....
What Molarity of NaCl would give a 300mOsm solution so as to be isotonic to ECF and ICF Set up and solve for X: (cross multiply) 300 mOsm X 2000 mOsmTM Try this on your own, then read on. Show work here: You should have an answer of 0.15 M. If you don't: please ask for help. You need to be able to get that calculation for the next part. Now find the number of grams per liter needed to...
Calculate the concentration in units of mg/L for oxygen dissolved in 1050.0 mL of water at 25 °C, if the partial pressure of O2 in gas phase in equilibrium with the water is 238.1 mm Hg. Assume the density of water =1 g/mL
3. The Henry's law constant for the solubility of 10-4 Matm at oxygen in water is 3.30 x 128 C and 2.85 x 104 M/atm at 22 C. Aiır is 21 mol% oxygen. (a) How many grams of oxygen can be dissolved in one liter of a trout stream at 128 C at an air pressure of 1.00 atm? (b) How many grams of oxygen can be dissolved per liter in the same trout stream at 22 ℃ at the same pressure...
A solution contains 20 ppm Ca+2. Express the Ca+2 concentration in the following terms: 21. A solution contains 20 ppm Cat2. Express the Ca+2 concentration in the following terms: a. g Cat2 in 1,000,000 mL water (mL = 0.001 L) b. g Cat2 in 100 mL water c. % Cat2 in the 100 mL water d. mg Ca 2/kg water (mg = 0.001 g = 0.000001 kg) e. molarity (M or moles Cat2/L).
The following five beakers, each containing a solution of sodium chloride (NaCl, also known as table salt), were found on a lab shelf: Beaker Contents 1 200 mL. of 1.50 M NaCl solution 2 100 mL. of 3.00 M NaCl solution 3 150 mL. of solution containing 22.5 g of NaCl 4 100 mL. of solution containing 22.5 g of NaCl 5 300 mL. of solution containing 0.450 mol NaCl Arrange the solutions in order of decreasing concentration. Rank from...
Water that contains 2 mg oxygen per liter or less is termed hypoxic, since at that concentration many aquatic aerobic organisms are unable to survive. How does the depth at which hypoxia is observed change
Fasting normal blood sugar glucose concentration is between 70-100 mg per 100 ml of blood. Express this concentration range of blood glucose in mM. The answer is 3.89-5.55 mM glucose. Using MW glucose of 180 g/mol. Please show the work