how would you separate a mixture of sand and pepper?

A student follows a lab protocol that asks them to make an ‘alcohol’ solution for an experiment. They make a 1.00 L solution by adding 575 g of an alcohol to water. Later they realize that there were three different alcohols sitting on the lab bench and they’re not sure which one they used. The alcohols are: methanol (CH3OH), ethanol (C2H5OH), and butanol (C4H9OH). They decide to boil the solution and they find that it boils at 106.40 °C. Using this information determine which alcohol the student used to make their solution. Density of water is 1.00 g/mL, Kb = 0.513 K/mc. Hint: you need to consider the molar masses of your alcohols.

Which of the following are mixtures? salt (NaCl) air (mostly N₂ and O₂) water (H₂O) salt water

Is distillation a good method for separating a mixture of water and hexane?  Why or why not?

50.0 kg mixture of salt and water is 15.0% (by mass) salt. Give the mass of the salt and water in the mixture

More than 40% of the world's population has limited access to clean water. One proposed method for the production of clean water involves removing salt from seawater. Which technique would be used to separate the salt from the saltwater mixture?

Evaluate the product. (7.61×10^9)(4.46×10^3)

A student heated a 2.43-g sample of a hydrate and recovered 1.35g of an anhydrous compound. (c) Calculate the number of moles of water loss from the hydrated compound.

Which piece of equipment would you use to measure 7.10 mL of CuSO4 (aq)?

Balence the equation