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A student mixed 50.0 mL of 0.50 M H2SO4 (aq) at 18.5 degrees C with 100 mL of 0.50 M NaOH (aq) at the same temperature. After the reaction was completed, the temperature rose to 22.0 degrees C. What was the heat of reaction? (Assuming the densities of the solutions are 1.00g/mL.
They are all buffer solutions and would all have the same capacity 2) Of the following solutions, which has the greatest buffering capacity?
Octane has a density of 0.692 g/mL at 20 C. How many grams of O_2 are required to burn 1.50 gal of C_8H_18?
Determine the molality and molarity of a solution made by dissolving 445 g of NaBr in 2600 ml of water ?
If equal volumes of 0.15 NaOH and 0.10 NaH2PO4 are mixed what type of system is formed? A) Buffer Ka2 B) amphiprotic C) Buffer Ka3 D) strong base
what is the pH of a solution prepared by dissolving 4.5 g HCl in water to make 410 mL of solution?
The pressure of 4.57 L of an ideal gas in a flexible continer is decreased to one-third of its original pressure, and its kelvin temperature is decreased by one half
Write equation for the reaction : Mg+H2SO4(diluted) Identify the oxidizing agent and the reducing agent.
The simplest formula of a substance is found to be CH2O, and its approximate molar mass is found by experiment to be 93 g•mol-1. What is its exact molar mass?
How much heat is required to warm 223 g of ice from -45.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
"If 2.3g of Sodium reacted with 1.8g of water, what would be the total mass of Sodium Hydroxide and hydrogen produced? Explain your answer"
25 mL of 0.3 M HCl are diluted to 500 mL. What is the molarity of the resulting HCl solution.
2.00 moles of a gas occupies 62.2 L at a par- ticular temperature and pressure. Its density is 0.900 g/L. What is the molar mass?
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