Washing soda is a form of a hydrated sodium carbonate (Na2CO3 ∙ 10H2O). If a 10g sample was heated until all the water was driven off and only 3.65 g of anhydrous sodium carbonate (106 g/mol) remained, what is the percent yield of the anhydrous sodium carbonate? Na2CO3 ∙ 10H2O → Na2CO3 + 10H2O

Please help due in 30 mins

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

What is true for a substance that releases energy

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.