Suppose 10.000 grams of a hydrate were placed into a crucible and then heated until all the water was driven off. The mass of the anahydrate was 7.500 grams. Calculate the percent water in this hydrate?

Question

766 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-02-06T01:37:03

#"Total weight = 10 g" = 100 %weight#

#"Lost weight = Evaporated Water = 10.0 - 7.5"#

#"= 2.5 g = x %weight"#

Calculating the %water vapor:

#("100 %t"/"10 g") " 2.5 g"= color(blue)"25 %wt of vapor water"#