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Katyanochek1 [597]
2 years ago
11

Cho 8,36 gam hỗn hợp nhôm và đồng tác dụng vừa đủ với dung dịch HCl 20%. Sau phản ứng thu được 4,4622 lít khí hydrogen ở đkc và

m gam chất rắn. Biết ở đkc (25°C, 1 bar) thì 1 mol khí có thể tích là 24,79 lít.
a) Tính khối lượng dung dịch HCl đã dùng.
b) Tìm m.
c) Xác định thành phần phần trăm theo khối lượng của mỗi kim loại trong hỗn hợp ban đầu.
d) Dung dịch sau phản ứng chứa những chất nào? Tính khối lượng các chất tan đó
Chemistry
1 answer:
Sophie [7]2 years ago
6 0

Answer:

2000000000000000000

Explanation:

%%%%

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Calculate the density of an object with a mass of 6.147 and a volume of 9.3 (include units)
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Density (D) = Mass (M) divided by Volume (V)

So you would do D = 6.147 divided by 9.3

As an as answer you would get: 0.6609677419g/cm^3

Additional information:

The formula for volume is:
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I hope this helps :)
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N76 [4]
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8 0
3 years ago
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32km/hr

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7 0
3 years ago
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