What was the weight percent of water in the hydrate before heating? put answer in one decimal place. weight of water 0.349 weight of hydrate 2.107

Data:

weight of water before heating = 0.349

weight of hydrate before heateing = 2.107

Formula:

Weight percent of water = [ (weight of water) / (weight of the hydrate) ] * 100

Solution:

Weight percent of water = [ 0.349 / 2.107] * 100 ≈ 16.6 %

16.6%

8.7 degrees celsius and 15.6 degrees fahrenheit

They carry out the exchange of gases as we breathe ( oxygen and carbon dioxide).