X là C2H8O4N2 là muối của axit hữu cơ. Y là C4H8O3N2 là đipeptít. Cho 11,64 gam hỗn hợp X, Y tác dụng với NaOH thu được 1,344 lít khí. Nếu cho hỗn hợp X, Y tác dụng với HCl thì thu được m gam hỗn hợp chất hữu cơ. Xác định X, Y và tính m ?

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. initial mass and yield sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure