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duongluthor1923
2 năm trước
Oxi hóa hoàn toàn 0,135 g hợp chất hóa học A rồi cho sản phẩm lần lượt qua bình 1 chứa H2SO4 đặc và bình 2 chứa KOH thì thấy khối lượng bình 1 tăng lên 0,117 g, bình 2 tăng lên 0,396 g. Ở thí nghiệm khác, khi nung 1,35 g hợp chất với CuO thì thu được 112 ml (đktc) khí nitơ. Tính thành phần phần trăm của các nguyên tố trong phân tử chất A.
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