C 2.40 g of NH4Cl in 930.0 mL of solution MAH, Mc- = d 2.40 g...

Question

Question

science chemistry

Answer 1

Answer #1

Molarity = no. of mules of Solute Volume of solution (in L) no. of moles = mass M.W. (C MW of MHyll = 53.491 g/mol .. no. of

Answer 2

Similar Homework Help Questions

A calorimeter contains 25.0 mL of water at 13.0 ∘C . When 2.40 g of X...

A calorimeter contains 25.0 mL of water at 13.0 ∘C . When 2.40 g of X (a substance with a molar mass of 64.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 30.0 ∘C . Calculate the enthalpy change, ΔH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)], that density of water is 1.00...
1a. A calorimeter contains 34.0 mL of water at 15.0 ∘C . When 2.40 g of...

1a. A calorimeter contains 34.0 mL of water at 15.0 ∘C . When 2.40 g of X (a substance with a molar mass of 62.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 30.0 ∘C . Calculate the enthalpy change, ΔH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)], that density of water is...
Calculate the pH at 25°C of 220.0 mL of a buffer solution that is 0.350 M...

Calculate the pH at 25°C of 220.0 mL of a buffer solution that is 0.350 M NH4Cl and 0.350 M NH3 before and after the addition of 2.40 mL of 6.0 M HNO3. (The pKa for NH4+ = 9.75)

1. How concentrated is the solution containing 60 g of NH4Cl at 90 °C? A. unsaturated...

1. How concentrated is the solution containing 60 g of NH4Cl at 90 °C? A. unsaturated B. supersaturated C. saturated D. super-unsaturated 2. The solubility of NaNO3 at 10 °C? A. 75 g/100 g water B. 80 g/100 g water C. 85 g/100 g water D. 40 g/100 g water 3. The minimum temperature required to obtain 55 g of KNO3 per 100 g of water? A. 60°C B. 45 °C C. 35 °C D. 55 °C
How many grams of dry NH4Cl need to be added to 2.40 L of a 0.400 M solution of ammonia, NH3, to prepare a buffer s...

How many grams of dry NH4Cl need to be added to 2.40 L of a 0.400 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.78? Kb for ammonia is 1.8 x 10^-5.
Part A: How many grams of dry NH4Cl need to be added to 2.40 L of...

Part A: How many grams of dry NH4Cl need to be added to 2.40 L of a 0.500 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.71? Kb for ammonia is 1.8×10^−5. Part B: A 75.0-mL volume of 0.200 M NH3 (Kb=1.8×10−5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 17.0 mL of HNO3. Part C: Barium sulfate, BaSO4, is used in medical imaging of the gastrointestinal tract...

A 1.0L solution contains equimolar amounts of NH4Cl and NH3, 10 mL of water is added...

A 1.0L solution contains equimolar amounts of NH4Cl and NH3, 10 mL of water is added to the solution. Which statement describes the effect of the added water use equations to explain a) pH increases b) pH decreases c) pH remains unchanged d) molar concentration of the NH3 increases
7. At 20°C, a 2.32 M aqueous solution of ammonium chloride has a density of 1.0344 g/mL. What...

7. At 20°C, a 2.32 M aqueous solution of ammonium chloride has a density of 1.0344 g/mL. What is the molality of ammonium chloride in the solution? The formula weightof NH4Cl is 53.50 g/mol
16. Calculate the molarity of K+ ions in 0.76 g K3PO4 in 125 mL of solution

16. Calculate the molarity of K+ ions in 0.76 g K3PO4 in 125 mL of solution

Calculate the pH of a solution formed by mixing 250.0 mL of 0.900 M NH4Cl with...

Calculate the pH of a solution formed by mixing 250.0 mL of 0.900 M NH4Cl with 250.0 mL of 1.60 M NH3. The Kb for NH3 is 1.8 × 10-5. 8.25 9.18 10.83 9.50