a 40-lb container of peat moss measures 14x20x30 in. a 40-lb container of topsoil has a volume of 1.9 gal. (a) calculate the ave
rage densities of peat mass and topsoil in units of g/cm3. would it be correct to say that peat moss is "lighter" than topsoil? explain. (b) how many bags of the peat moss are needed to cover an area measuring 10 ft. by 20 ft. to a depth of 20 in.?
For the topsoil, it is 40 lbs/1.9 gallons assume US gallon. I US gallon = 3785ml. 1 kg=2.2 lbs so 1 lb = 1/2.2= 0.454 kg or 454 grams. 1.9 gallons = 3785 x 1.9 = 7192ml. 40 lbs=18160graams. So 18160/7192= 2.52 g/cc for the topsoil density. For the peat, the volume of the bag of the peat is 14x20x30 inches or 35.6x50.8x76.2cm (1 inch = 2/54 cm)= 137806 cc. So for the 40 lb again = 18160 grams/137806= 0.13 g/cc. So the peat is much lighter than the topsoil. As for the number of bags of peat needed to fill the given volume of 10ftx20ftx20 inches, the latter volume is 120"x240"x20"= 576,000 cubic inches and the volume of one bag is 14x20x30 inches= 8400 cubic inches so 576,000/8400= 68.6 bags of peat to fill it.
So in your question that ask to calculate the Ph result of the resulting solution if 26 ml of 0.260 M HCI(aq) is added to the following substance. The the result are the following: A. The result is pH= 14-pOH B. There are 10ml of 0.26m HCL excees in this reaction so the answer is log(H)+
Answer:Lone pairs are the valence electron pair of any element which do not take part in bonding but affect the shape of molecules. Bond pairs or shared pairs are the electron pair which does both affect the geometry of molecules and take part in chemical bonding. These are form due to sharing of electrons.
Bromine is classified as an element in the 'Halogens' section which can be located in group 7 of the Periodic Table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts".