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Calculate the osmotic pressure of a solution contains 0.0010 mole of KCl and 0.0010 mole of BaCl2 per liter of solution at 298 K
Concentrated stock HCl has a molecular weight of 36.46 and contains 32g of salt for every 100g of acid (termed as 32% w/w). To prepare molar solutions %w/w must be converted into %w/v by considering the density of stock HCl which is 1.16.
In the oxidation of glucose (C6H12O6), water and carbon dioxide are formed when the sugar is reacted with oxygen gas. If 4.39 grams of glucose are reacted, assuming 100% yield, how many moles of carbon dioxide would evolve?
A 134-mL bubble of hot gases at 217C and 1.79 atm escapes from an active volcano. What is the temperature, in C, of the gas in the bubble outside the volcano if the new bubble is 164mL and the pressure is 0.759 atm?
The density of the metal is 8.785 g/cm3 and the specific heat of the metal is 0.425 J / g oC. If the metal foil absorbs 864.7 J of heat as its temperature changes from 21.32 oC to 34.80 oC, calculate the thickness of the metal foil in mm.
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 80.0 mL of 0.529 M HCl and 46.0 mL of 1.150 M NaOH? pH = What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 51.0 mL of 0.0401 M NaOH
Which of the atoms in HI has a partial positive charge. Namely, when HI is placed in the electric field between two charged plates, which atom would point towards the negative plate? Write either H or I. and What is the difference in electronegati..
Sketch a titration curve for the titration of 100mL of 1.25x10^-2 M ascorbic acid with 1.00x10^-2 M NaOH, given that Ka= 8.0x 10^-5 and Ka2= 1.6x10^-12. How many equivalence points should the curve have and what color indicator(s) could be used?
In a reaction mixture at equilibrium, the partial pressure of NO is 119 torr and that of Br2 is 175 torr. What is the partial pressure of NOBr in this mixture? Kp=28.4 at 298 K.
complete the following chart of gas properties. For each positive observation, write a balanced chemical equation to describe the process.
in an experiment 1.65g of leadii nitrate react with .327g of zinc. what is the mole relationship between the lead
Explain why ionization energy increases when successive eletrons are removed from a given shell
Suppose a snack bar is burned in a calorimeter and heats 2,000 g water by 20 °C. How much heat energy was released? (Hint: Use the specific heat equation.) Give your answer in both joules and calories.
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