Calculate the resulting ph if 365 ml of 2.88 m hno3 is mixed with 335 ml of 1.10 m ca (oh) 2 solution. be aware of stoichiometry!

Describe what happened to the concentration of ions in the urine when the PCO2 was raised? a. Raising the carbon dioxide increases the acid potential and so the body has to get rid of H + ions in the urine. Therefore H + in the urine increased. b.

Consider the gaseous reaction: A (g) + B (g) → AB (g) A mixture of 0.04 mol of gas A and 0.1 mole of gas B was allowed to react at 300 K in a 1 L sealed container. At the end of the reaction, what is the total pressure of the mixture?

What is the value of the standard enthalpy of formation of an element in its most stable form?

Question 6 A 9.0-kg crate rests on a frictionless surface. It then experiences a net horizontal force of 45. newtons. What is the resulting acceleration of the crate? A 0.0 m/s2 B 0.20 m/s2 C 5.0 m/s2 D 36 m/s2

How many atoms of mercury are present in 3.2 cubic centimeters of liquid mercury? the density of mercury is 13.55 g/cc. answer in units of atoms?

A cylinder contains oxygen at a pressure of 10.0 atm and a temperature of 300.0 K. The volume of the cylinder is 10,000 mL. What is the mass of oxygen gas?

4 - explicar as mudanças de estados fisicos da materia 6 - definir e exemplificar: -Ligações iônicas ou eletrovalente -Ligações covalentes ou molecular 7-definir substancias puras e suas clasificações 8-definir e exemplificar misturas homogeneas e

What ion forms when an acid is dissolved in a solution?

Suppose you found a material in which 12.5% of the original radioactive atoms were present. if the half-life is 47 years, how old is the material?

How many neutrons does xenon have?