volume , V = 2.75*10^2 mL
= 0.275 L
use:
number of mol,
n = Molarity * Volume
= 0.15*0.275
= 4.125*10^-2 mol
Molar mass of NaCl,
MM = 1*MM(Na) + 1*MM(Cl)
= 1*22.99 + 1*35.45
= 58.44 g/mol
use:
mass of NaCl,
m = number of mol * molar mass
= 4.125*10^-2 mol * 58.44 g/mol
= 2.411 g
Answer: 2.41 g
A 0.150 M NaCl solution is referred to as a physiological saline solution because it has...
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Physiological saline requires a concentration of 0.85% NaCl. How much NaCl must be added to if you wish to make 3500.0 ml of the 0.85% solution?
27) (2 pts ea) If physiological saline has a concentration of 0.90% (m/v) NaCl, identify the following solutions as isotonic, hypotonic or hypertonic: A) 1.25% (m/v) NaCl B) 0.90% (m/v) NaCl C) 5.0% (m/v) Naci
3 Severely dehydrated patients may be given a "physiological buffered saline" (PBS) solution with a pH of about 7.4 intravenously to restore thbeir fluid balance Do vou think that PBS would contain only sodium chloride in the solution? Justify your answer. www .4- Honda. Use the dilution equation to calculate the number of milliliters of 3.00 M NaCl needed to make 400.0 mL of a PBS solution with a final sodium chloride concentration of 0.154 M. Show your work. Calculate...
3. Severely dehydrated patients may be given a "physiological buffered saline" (PBS) solution with a pH of about 7.4 intravenously to restore their fluid balance. Do you think that PBS would contain only sodium chloride in the solution? Justify your answer. 4. Use the dilution equation to calculate the number of milliliters of 3.00 M NaCI needed to make 400.0 mL of a PBS solution with a final sodium chloride concentration of 0.154 M. Show your work. 5. Calculate the...
17. What volume of 0.345 M NaCl solution is needed to obtain 10.0 g of NaCl? 18 How many milliliters of a 0.0015 M cocaine hydrochloride (C17H22ClNO4) solution is needed to obtain 0.010 g of the solute? 19.. A solution having an initial concentration of 0.445 M and the initial volume of 45.0 mL is diluted to 100.0 mL. What is its final concentration? 20. A 50.0 mL sample of salt water that is 3.0% m/v is diluted to 950...
A saline solution has a concentration of 5.420 X 10 -3 M How many g of NaCl are in 500. mL of the saline solution? molar mass NaCl = 58.4 g/mol Select one: a. 6.34 X 10 -1 b. 1.58 X 10 -1 c. 3.2 X 10 1 d. 2.16 X 10 4
Perform the following concentration conversions (c) "Normal saline" is an aqueous solution of sodium chloride that is widely used for many medical purposes, manufactured as a sterile solution of 9 grams of NaCl per liter. Calculate the molarity of normal saline. (d) A solution is prepared of 30.0 g of sucrose dissolved in 300.0 mL of water. what is the concentration of this solution expressed as % sucrose by mass? (The density of water is 1.0 g/mL.)
od and we want to 100 Lof e so Saline solution in an intravenous or formi minered tvough a vinto rehydrate the body because normal salir Which of the following is NOT correct? We need of seat because concentration 100 volumended 50 We need of seawal conte x to volume de We need to ide by 100 0.009 because percentage Use the forma concentration volume needed amount of s anded 2 points Seven Saline solution in an intravenous or IV...
1. (2 pts) A saline solution contains 1.1 % NaCl by mass. How much NaCl is present in 96.3 g of this solution? 2. (4 pts) How many liters of a 0.500 M sucrose (C12H22011) solution contains 1.5 kg of sucrose? 3. (2 pts) To what volume should you dilute 25 mL of a 12 M stock HCl solution to obtain a 0.500 M HCl solution? 4. (2 pts) Write the formula for the conjugate acid of the following bases:...