What volume of 12.1 M HCl must be diluted to prepare a 0.2500 M HCl solution with a volume of 2.000 L

One mole of zinc has a mass of 65.4 grams. approximately how many atoms of zinc are present in one mole of zinc? 32 × 1023 atoms 6 × 1023 atoms 66 atoms 65 atoms

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775