user-avatar
yen0211
2 năm trước
Trong một nhà máy sản xuất ancol, người ta dùng nguyên liệu là đường mía để sản xuất ancol etylic. Tính khối lượng đường mía cần thiết để sản xuất được 1012 gam ancol etylic. Biết hiệu suất của quá trình phản ứng đạt 70%. (Cho Al = 27; Cu = 64; Mg= 24; Na= 23; C = 12; N= 14; S=32;0= 16; H = 1; Cl = 35,5) Ai giải hộ bài 9 vs ak Cám ơn
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Please help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Combine each pair of sentences using the conjunction in brackets 1. The world is getting warmer. Polar bears are in danger of becoming extinct. (because) -> 2. There were not enough students. They closed the village school. (as) -> 3. I really enjoyed the concert. The music was too loud. (although) -> 4. He got a creampie smashed in his face. Everyone laughed. (when) -> 5. Paul was walking to the bus stop. He found somebody`s wallet on the ground. (while) -> 6. Jackie will take out the trash. She is done with her chores. (after) -> 7. You study for the test. You will do much better. (if) -> 8. Rex practiced his guitar. He could play the songs perfectly. (until) -> 9. We could get back to shore. It started to rain hard. (before) -> 10. I saw him. He was always carrying a plastic shopping bag. (whenever) ->

Please help me!!!!!!!!!!!!!!!!!!!!!!!!!!! Đặt câu hỏi dựa vào từ trong ngoặc: 1.The elephant race festival is usually held (in Don village or in forests near the Sevepoi river) -> 2.(Thirteen) elephants joined the elephants race on March 12 in Lak District -> 3.The Lim festival takes place (on the 13th day of the first lunar month) -> 4.The spring festival of Bai Dinh pagoda lasts (for three months) -> 5.Saint Giong Festival was recognized by UNESCO as (world intangible cultural heritage) -> 6.Vu Lan festival is so-called "Xa toi vong nhan" festival (because this is the day for the death`s souls) -> 7.The Kate festival is celebrated by (the Cham ethnic group) -> 8.The Perfume Pagoda (is about 70 kilometers away) from Hanoi -> 9.(Tran Temple) festival is held to commemorate the Kings of the Tran dynasty -> 10.To celebrated the Mid-Autumn festival, children commonly (join street parades, carrying lanterns and wearing masks) ->

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team