Dùng dung dịch h2so4 loãng hòa tan hết m gam nhôm thu được 3 36 lít khí hiđro(đktc). giá trị m là

Cho kim loại Al vào đ H2SO4 sau phản ứng thu được 3,36 lít khí đktc và muối nhôm sunfat và khí hidro

a Viết PTHH xảy ra?

b Tính khối lượng Al sau phản ứng

c Tính khối lượng muối thu được và khối lượng axit đã phản ứng

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}

Bài 37. Hòa tan hết m gam Al vào dung dịch H2SO4 đặc, nóng .Sau phản ứng thu được 3,36 lít khí SO2 (đktc).
a) Viết phương trình phản ứng.
b) Tính m.

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Lorem ipsum dolor sit amet, consectetur adipiscing elit.Morbi adipiscing gravdio, sit amet suscipit risus ultrices eu.Fusce viverra neque at purus laoreet consequa.Vivamus vulputate posuere nisl quis consequat.

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Cho m gam Al tác dụng hết với dung dịch H2SO4 loãng dư, thu được 3,36 lít H2 (đktc). Giá trị của m là?


A.

B.

C.

D.

Thể tích khí Cl2 (đktc) cần dùng để phản ứng vừa hết với 5,6 gam Fe là

Hoà tan hoàn toàn m gam Al trong dung dịch H2SO4 loãng dư thu được 3,36 lít khí H2 (đktc). Xác định khối lượng m

A.4,05 gam

B.2,7 gam

Đáp án chính xác

C.8,1 gam

D. 5,4 gam

Xem lời giải