Ethanol has a density of 0.79g/mL. If a sample has a mass of 10.2 g, what is its volume?

What is the mass of NH4Cl that must dissolve in 200 grams of water at 50 degrees c to make a standard solution?

Mark all of the things that describe the Solar System. Question 11 options: a group of objects that interact with one another the main interaction of objects is with the sun Pluto is at the boundary of the Solar System 50% of the Solar System's mass

What is the solubility in moles/liter for magnesium hydroxide at 25 oC given a Ksp value of 1.1 x 10-11. Write using scientific notation and use 1 or 2 decimal places (even though this is strictly incorrect!)

A balloon filled with helium has a volume of 43.4 L at 305 K. What volume will the balloon occupy at 273 K?

A polypeptide in its native conformation has weak interactions between its R groups. However, when that same polypeptide is denatured, these R groups similarly interact with water.

What nuclear symbol has 13 protons and 15 neutrons

Which of the following statements about solutions is NOT true? Select one: a. A solution has the same properties throughout. b. Solutions contain a solvent dissolved in a solute. c. The solute in a solution can be a solid, liquid, or gas. d.

If the molar mass of NaCl is 58.44 g/mol, what amount of NaCl (in mol) is contained in 250.0 mg of NaCl?

How many hydrogen atoms are contained in 167 grams of propane?

How many grams of CO2 are in 6 mol of the compound (this is a science question) ? and the units?