What precipitate is formed when lead(II) nitrate is mixed with ammonium sulfate?

A solution of potassium hydroxide is standardized against potassium hydrogen phthalate (KHC8H4O4). A sample of 0.5544 g of potassium hydrogen phthalate requires 30.88 mL of potassium hydroxide solution to reach a phenolphthalein endpoint. What is the molarity of the potassium hydroxide solution?

The ΔE of a system that releases 12.4 J of heat and does 4.2 J of work on the surroundings is __________ J

What is the net ionic equation for a reaction between a strong acid and a strong base?

Consider 100 g blocks of aluminum (specific heat capacity: 0.897 J/g°C) and iron (specific heat capacity: 0.449 J/g°C). Both blocks are placed on a hotplate such that 1000 J of energy is transferred to each block. What happens to their temperatures?

The kinetic energy of a 7.3 kg steel ball traveling at 18.0 m/s is __________ J.

An unknown compound is determined by elemental analysis to have the following composition: Element Mass(%) Cs 66.3 Cl 17.7 O 16.0   What is the compound’s empirical formula?

The reaction NH3(aq) + H2O(l) → OH-(aq) + NH4+(aq) is an example of _____?

What is the correct name for the salt formed between calcium hydroxide and hydrochloric acid?

Use the data in the following table to calculate the ΔHrxn of the following reaction: CO2(g) + H2(g) → CO(g) + H2O(g) substance ΔH°f (kJ/mol) CO2(g) −393.51 H2(g) 0 CO(g) −110.52 H2O(g) −241.82