A student used 0.230g of oxalic acid dissolved in 50.0 mL of water as a primary standard (MW 126.07 g/mol). 37.10 mL of sodium hydroxide aqueous solution were required to titrate the sample. What is the molarity of the sodium hydroxide solution? The neutralization reactions is: HOOCCOOH + 2 OH– →– OOCCOO – + 2 H2O

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

Why are people not able to skip a dive to the deepest part of the ocean

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?