volume , V = 1.821 L
use:
number of mol,
n = Molarity * Volume
= 0.1987*1.821
= 0.3618 mol
Molar mass of AgNO3 = 169.87 g/mol
use:
mass of AgNO3,
m = number of mol * molar mass
= 0.3618 mol * 169.87 g/mol
= 61.46 g
Answer: 61.46 g
Calculate the amount of AgNO3 to prepare 1.821 L of 0.1987 M AgNO3 (169.87 g/mol) from the primary standard-grade...
How many grams of primary standard grade sodium carbonate are necessary to prepare 2.00 L of a 0.0480 M Na2CO3 solution? Number g
A standard 0.0206 M solution of Nat is required to calibrate an ion-selective electrode method to determine sodium. Calculate how many grams of primary standard Na2Co3 (105.99 g/mol) are needed to prepare 474.6 mL of solution. (Units required. Case sensitive)
A Na_2CO_3 standard solution is prepared by transferring 2.4817 g of primary standard grade sodium carbonate into a 250.0 mL volumetric flask, dissolving the sample in ~ 100 mL of distilled deionized water, and diluting to the mark. A 25.00 mL aliquot is taken and titrated with 42.65 mL of HCI solution. Calculate the concentration of the HCI solution. (Molar masses are: Na_2CO_3 = 105.989 g/mole; HCI = 36.461 g/mole; H_2O = 18.015 g/mole.) Circle the best choice. (Showing calculations...
Calculate the number of grams of solid Tris-base (121.1 g/mol) required to prepare 250.0 mL of a 50.0 mM solution. Calculate the number of milliliters of 5 M NaCl required to prepare 875.0 mL of a 25 mM NaCl solution.
Sodium carbonate (MM=105.988 g/mol) is a primary standard base that reacts with hydrochloric acid as follows: Na2CO3 + 2HCI → 2NaCl + H2O + CO2(g) If 39.09 mL of an HCl solution were required to titrate a solution containing 287.5 mg of primary standard Na2CO3, calculate the molarity of the HCl solution.
1).From the standard enthalpies of formation, calculate ΔH°rxn for the reaction C6H12(l) + 9O2(g) → 6CO2(g) + 6H2O(l) For C6H12(l), ΔH°f = –151.9 kJ/mol (5 points) Substance ∆H°f , kJ/mol C6H12(l) –151.9 O2(g) 0 H2O(l) –285.8 CO2(g) –393.5 2).Determine the amount of heat (in kJ) given off when 1.26 × 104 g of ammonia are produced according to the equation N2(g) + 3H2(g) → 2NH3(g) ΔH°= –92.6 kJ/mol Assume that the reaction takes place under standard conditions at 25oC.
Calculate the standard entropy change for the reaction 2H2(g)+O2(g)?2H2O(l) using the data from the following table: Substance ?H?f (kJ/mol) ?G?f (kJ/mol) S? [J/(K?mol)] H2(g) 0.00 0.00 130.6 O2(g) 0.00 0.00 205.0 H2O(l) -285.8 -237.2 69.90 Express your answer to four significant figures and include the appropriate units. Please show me the steps on how to solve this!!! Thank you!!!
1.Calculate the mass of malonic acid (C3H4O4, MW 104.07 g/mol) required to prepare 50.00mL of a 0.15 M malonic acid solution. 2. Calculate the mass of manganese sulfate monohydrate (MnSO4*H2O, MW 169.01 g/mol) required to prepare 50.00mL of a 0.020 M manganese sulfate solution 3. Calculate the mass of potassium iodate (KIO3,MW 213.99 g/mol) required to prepare 50.00mL of a 0.20 M potassium iodate solution. 4. Calculate the volume of 1.0 M sulfuric acid (H2SO4) required to prepare 100.00mL of...
You are directed to prepare 100 mL of a 500 mEq/L KOH standard. The primary standard used has a concentration of 0.400 Eq/L. When titrating your KOH solution, you discover that 4.0 mL of the primary standard reacted exactly with 5.0 mL of the KOH solution. a. What is the actual Eq/L concentration of the KOH solution? b. How many mEq are required to adjust the volume and concentration of the remaining 85 mL of KOH solution to 100 mL...
Standard Enthalpies of Formation (ΔHof): C4H10(g) = -124.8 kJ/mol CO2(g) = -393.5 kJ/mol H2O(l) = -285.8 kJ/mol What is the total amount of heat required for the process? What is the molar heat of combustion for butane? What is the mass of butane needed for this process?