. A student has a stock solution of 30.0% w/v H2O2 (hydrogen peroxide). Describe how the student should prepare 250 mL of 0.25% w/v H2O2 solution? 10. To make 5.0 L of a fruit punch that contains 10% v/v ethanol, how much 95% v/v ethanol must be mixed with how much fruit juice?

Q: Explain why water forms into beads on a waxed car finish.

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Q: 6. An aqueous solution of a nonelectrolyte boils at 100.82°C. What is the molality of this solution?

A: The liquid boils at 100.82° C.Therefore elevation of boiling point is 100.82° C - 100° C = 0.82° C…

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A: According to the question, The mass of the H2O is given by = 81.0 g The mass of the solute per 100 g…

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Q: A solution is prepared by mixing 10.0 g of water and 10.0 g of methanol. The final volume of the…

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Q: he boiling point of water is 100.0°C at 1 atmosphere. How many grams of sodium chloride (58.44…

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Q: 9. Sr(OH)2 has a solubility of 11.3 g/ 100 g H₂O at 20.0 °C. a. How much would be needed to make a…

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Q: 7a) Calculate the number of grams of hydrogen peroxide contained in 25.0 mL of a 3.60 M solution.…

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A: for Dilution , Always use M1V1 = M2V2

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Q: A high school chemistry teacher needs to dilute her stock of 18.0 M H2SO4 solution for a lab. How…

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Q: What is the percent by mass of a solution if 20.0 g of sodium hydroxide is dissolved in 250.0 g of…

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Q: 0.4 mL of a solute is dissolved in 99.6 mL of solvent. What is the ratio and concentration in %v/v?

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Q: lab you are required to make 250.0 mL of a 1.1 M NaOH solution. How many grams of NaOH should you…

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Q: %3D What mass of NaHCO3 is needed to make 20.0 mL of a 1.00 M solution? Molarity (M) = moles/ Liter…

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Q: 1. What mass of sodium hydroxide must be weighed to make 500 mL of 0.1 M NaOH? 2. What mass of…

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Q: 5.0 g sample

A: When the mass of a substance is given, the number of moles is calculated by dividing the given mass…

Q: 3. If dissolving 1.5 g of a solute into 100 mL of water caused the temperature of the solution to…

A: Since you have asked multiple questions we will solve the first one for you. If you want a…