Find the Molarity of a solution containing 2.5 moles of solute in 15000 milliliters.

A hot air balloon, when fully inflated, contains 2,800,000 Liter of air. If each mole of air occupies 22.4 L of at a temperature of 120 Celsius, at what pressure is the air at when the balloon is fully inflated?

Which of the following are redox reactions? P4 (s) + 10HClO (aq) + 6H2O (l) →4H3PO4 (aq) + 10HCl (aq) Br2 (l) + 2K (s) →2KBr (s) CH3CH2OH (l) + 3O2 (g) →3H2O (l) + 2CO2 (g) ZnCl2 (aq) + 2NaOH (aq) →Zn (OH) 2 (s) + 2NaCl (aq) For those reactions that

In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g/mol). Calculate the number of moles of chlorine present in 140 g of chlorine gas. Express the quantity in moles to three significant figures.

How can the mechanical advantage of an inclined plane, or ramp, be increased? A. by making the ramp steeper B. by making the ramp longer C. by making the ramp shorter D. all of these

Which electrons in an atom have the most energy, and which ones have the least

Magnetism easily separates what mixture? A). Sand and glass B). Sand and iron C). Sand and clay D). Sand and aluminum

Match the science with the best description?

Can magnetism be used to identify a substance

Nitrogen dioxide dimerizes to give dinitrogen tetroxide: 2NO2 (g) → N2O4 (g). At 298 K, 12.55 g of an NO2/N2O4 mixture exerts a pressure of 0.963 atm in a volume of 6.92 L. What are the mole fractions of the two gases in the mixture?

What is the concentration of a solution, in gsolute/100gsolvent, made using 2.83 g of KNO3 in 2.03 g of H2O? Do not include units in your answer.