How many moles are in 25.0 grams of HF?

The density of glycerin is 1.26grams/centimeter cubed . how many is this? use the conversion rates of and . express your answer to the correct number of significant figures.

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .