how many moles of each substance 58.0 ml(m/v)%KCl(MW 74.55 g/mol)
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What is the molality of a 2.00 M solution of KCl (74.55 g/mol). Assume the density of the solution is 1.11 g/ml a. 2.00 m b. 2.08 m c. 0.52 m d. 74.6 m e. 1.11 m
A concentrated solution of potassium chloride contains 15% KCl (MW = 74.5 g/mol). How many milliequivalents of potassium are present in a 200 mL bottle? Assume that complete disassociation of KCl occurs. How is this worked? Answer is 403
Based on the following titration curve... The molar mass of KCl=74.55 g/mol and the density of water=1.00 g/mL What is the molarity of KCl at 80 degrees celcius? 150 140 130 120 110 NaNO3 100 90 KNO3 Grams of solute per 100 g H20 80 70 60 NH3) NHACI 50 KCI 40 Naci 30 20 KCIO3 10 -Cez(504)3 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C)
78) How many grams of KCl (molar mass = 74.55 g) will be produced from the reaction of 50.0 mL of 0.300 M KOH with excess HCl? KOH aq + HCl aq → KCl aq + H2O(ℓ) A) 1.12 g B) 9.31 g C) 0.876 g D) 6.98 g E) 4.65 g 79) Which of the following compounds has the largest formula mass? A) HCN B) SiH4 C) NO2 D) CCl4 E) BF3 80) Which of the following conditions characterizes...
How many mL of glycerol (MW=92.1 g/mol, density 1.26 g/mL) must be used to prepare 250.0 mL of a 0.150 M glycerol solution? Answer: 2.74mL glycerol
How many grams of Na3PO4 (MW = 164 g/mol) are needed to make 282.3 mL of solution that is 0.200 M sodium?
A 100.0 mL100.0 mL solution containing 0.927 g0.927 g of maleic acid (MW=116.072 g/mol)(MW=116.072 g/mol) is titrated with 0.275 M KOH.0.275 M KOH. Calculate the pH of the solution after the addition of 58.0 mL58.0 mL of the KOHKOH solution. Maleic acid has p?apKa values of 1.92 and 6.27. pH= At this pH, calculate the concentration of each form of maleic acid in the solution at equilibrium. The three forms of maleic acid are abbreviated as H2M,H2M, HM−,HM−, and M2−,M2−,...
c. 0.100 M AICI: 25. How many moles of KCl are contained in each solution? MISSED THIS? Read Section 5.2; Watch KCV 5.2, IWE 5.2 a. 0.556 L of a 2.3 M KCl solution b. 1.8 L of a 0.85 M KCl solution c. 114 mL of a 1.85 M KCl solution What react v 35. What produ
Part A How many moles of KCl are present in 34.5 mL of 2.10 M KCI? 13.8 0.138 7.25 0.0725 none of the above Submit Request Answer < Return to Assignment Provide Feedback
You wish to prepare 100.0 mL of a 325.0 ppm w/v sodium (MW = 22.9897 g/mol) solution. How many grams of sodium dichromate dihydrate (Na2Cr2O7·2H2O, MW = 297.998 g/mol) are needed to prepare this solution? Assume the final solution has a density of 1.00 g/mL.