A solution is made by dissolving KBr in water. If 22.1 grams of KBr are dissolved and the solution has a percent by mass concentration of 2.65% what mass of water was used to make the solution?

How many atoms are there in 5.70 mol of mg

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

Listenbase your answer to the question on the information below.nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body.cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment.which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61