If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 g/mol, how many sodium atoms are there in the sample?

Theoretically, how many moles of carbonic acid will be produced by 3.00 g sample of NaHCO3?

The concentration of calcium in a cell is 0.3%. The concentration of calcium in the surrounding fluid is 0.1%. How could the cell obtain more calcium?

A 1.00 liter sample of H2 gas is collected at 25.0°C and 202.6 kPa. What volume does this sample occupy at STP

What is the molarity of a solution of naoh if 2 liters of the solution contains 4 miles of naoh

Explain what happens when strong acids and bases dissolve in water.

Hf is a stronger acid than nh + 4. which base would be stronger: f - or nh3? 1. f - 2. both bases would be equal in strength. 3. nh3 4. cannot tell from the information given. 5. neither f1 - nor nh3 would be bases.

The concentration of commercially available concentrated nitric acid is 70.0 percent by mass, or 15.9 M. Calculate the density and molality of the solution.

Whats 2 properties of iron?

Which light packs the highest energy per photon

Which of the following hydrocarbons will most likely be found around cows?