Calculate the mole fraction of the total ions in an aqueous solution prepared by dissolving 0.400 moles of MgBr2 in 850.0 g of water

What are some true statements about light

How do you find amount of protons neutrons and electrons of an?

An insulated box is initially divided into halves by a frictionless, thermally conducting piston.• On one side of the piston is 1.5 m3 of air at 400 K, 4 bar.• On the other side is 1.5 m3 of air at 400 K, 2 bar.

The human genetic disease phenylketonuria (PKU) can result from: A. deficiency of protein in the diet B. inability to catabolize ketone bodies C. inability to convert phenylalanine to tyrosine D. inability to synthesize phenylalanine E.

What type of chemical bond forms between positive and negative ions?

If the mass of a material is 111 grams and the volume of the material is 11 cm3, what would the density of the material be?

In testing the effectiveness of an antacid compound, 20.0g of Hydrochloric Acid is mixed with 28.0g of Magnesium Hydroxide.

Suppose you had 10 mol of NaCl and you dissolved it in exactly 3.00 kg of pure water (the solvent). What would be the molality of the solution in mol/kg?

how many neutrons are present in each of the tree elments you idenitifed in your chosen type steel? be sure to show calculations used arrive at answer

Using the table on the right, complete each calculation by typing in the correct answer. 13.2L=? mL