Calculate the temperature of a gas when it is expanded to 5.25L. The gas originally occupies 3.45L of spave at 282K.

What molecules are found in all or almost all organic compounds? a. carbon and oxygen c. carbon and nitrogen b. hydrogen and oxygen d. carbon and hydrogen

3) Give the relative abundance of the two isotopes of nitrogen when N-14 hos o 14.0031 amu and N-15 has a mass of 15.0001 amu

What is the molecular formula for a compound with an empirical formula of CH2O if its experimentally determined molecular weight is 180 amu?

Given the balanced equation: 3fe3 + (aq) + al (s) → 3fe2 + (aq) + al3 + (aq) what is the total number of moles of electrons lost by 2 moles of al (s) ?

Which of the following is equal to 1 mole? Avogadro's number 6.02 x 1023 atoms of gold the number of water molecules in 18.01 mL of water all of the above

What is the full form of PVC

What happens when the land in the sea warm-up at different rates during the day

Increasing which variable would decrease the pressure of a contained gas?

How many moles of h2o are produced when using 7 moles of h2

A 25 mL sample of 0.100 M HNO3 completely reacts with NaOH according to this equation: HNO3 (aq) + NaOH (aq) → NaNO3 (aq) + H2O (1) How many moles of HNO3 are in the sample?