Cho 0,05 mol hh 2 este đơn chức tác dụng với 100ml dd NaOH 1M thu được hh gồm 2 muối hữu cơ A, B (MA: MB=58:41) có khối lượng 7,58 g và 0,88g một andehyt E . Để trung
hòa lượng NaOH dư cần 0,02 mol HCl. Xác định CTCT của hai este đã dùng.

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

In an effort to address concerns about global warming, a power plant in portland, oregon is designed to take all of its exhaust gases from its boilers and recycle the co2 using the solvay process to make sodium hydrogen carbonate. the reaction is shown below. nh3(g) + h2o(l) + co2(g) + nacl(aq) → nahco3(aq) + nh4cl(aq) how many liters each of nh3 and co2 (both at stp) would be consumed to produce 3.00 kg of sodium bicarbonate? the volume of both nh3 and co2 would be

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat