Moles of NaCl = Molarity x volume ( litre )
moles of NaCl = ( 0.115 mol / litre ) x ( 350 x 10–3 litre ) = 0.04 mol
mass of NaCl = mol x molar mass
= ( 0.04 mol ) x ( 58.5 gm mol—1 ) = 2.35 gm
so correct answer is 2.35 gm.
Question 5 2.5 pts How many grams of NaCl are contained in 350 mL of a...
How many grams per milliliter (g/mL) of NaCl are contained in a 0.250-M solution?
How many grams of NaCl (1 molar mass = 58.44 g/mol) are required to make 350 mL of a 1.25 M NaCl solution
How many grams of C6H12O6 are needed to prepare 350 mL of 2.5 M C6H1206 solution?
How many mL of a 0.162 M aqueous solution of sodium chloride, NaCl, must be taken to obtain 4.55 grams of the salt?
How many grams of NaOH are contained in 5.0 × 102 mL of a 0.66 M sodium hydroxide solution? 13 g 330 g 66 g 0.33 g 26 g
Page 2 5. How many grams of NaCl are contained in 300 mL of a 0.250 M solution of sodium chloride? a) 3.65 g b) 4.38 8 c) 10.4 g d) 14.6 g e) 29.9 g 6. Consider three identical 1 L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, flask C contains N2 gas. Which contains the largest number of molecules a) flask A b) flask B c) flask C d) each flask contains...
Question 22 (2.5 points) How many grams of glucose (C6H1206) are in 3.55 moles of glucose? A) 180. g B) 639 g C) 103 g D) 426 g E) 50.7 g А с ОЕ B D Question 23 (2.5 points) How many grams of MgO are produced when 40.0 grams of O2 react completely with Mg in the following reaction? 2Mg (s) + O2(g) → 2MgO(s) A) 30.4 g B) 50.4 g C) 60.8 g D) 101 g E) 201...
How many grams of the solute NaCl are dissolved in 250.0 mL of a 12.5 % (m/v) NaCl solution? A. 31.3 g B. 20.0 g C. 3.13 g D. 12.5 g
QUESTION 5 How many grams of Tricine (MW = 179) would you need to make 300 mL of a 20 mM solution? QUESTION 6 How many grams of Tricine (MW = 179) would you need to make 50 mL of a 10 UM solution? QUESTION 7 How many grams of magnesium chloride (x6H2O) are contained in 250 mL of a 0.1 M solution? QUESTION 8 How many grams of sucrose (MW 342) are contained in 250 mL of a 0.1...
Calculate: References 1pr a. How many grams of solid AgNO, will be needed to prepare 350. ml. of a 0.0500 M solution? 1 pt g 1 pt b. How many grams of vitamin C (CeHgOe) would be contained in 25.0 ml, of a 1.00 M solution? 1 pt 1 pt c. How many moles of HCl is contained in 300. mL of a S.0 M solution? 1 pt mol 1 pt Submit Answer Try Another Version 10 item attempts remaining...