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tatiyna
3 years ago
12

An unknown metal has a density of 10.51 g/ml and a mass of 287.8 g. What is the

Chemistry
2 answers:
Sedaia [141]3 years ago
7 0

Answer:

27.3834443387 so B

Explanation:

M/D=V

287.8/10.51=V

V=27.3834443387

Firdavs [7]3 years ago
5 0

Answer:

27.38

Explanation:

287.8 Divided by 10.51 = 27.38

Please mark brainliest if helped

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8 0
3 years ago
What is the answer to this:
Alexxx [7]
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6 0
2 years ago
what mass of aluminium hydroxide is needed to decompose in order to produce 65.0 L of water at STP in stoichiometry?
pishuonlain [190]
Aluminium Hydroxide on decomposition produces Al₂O₃ and Water vapors. 

<span>                               2 Al(OH)</span>₃    →    Al₂O₃  +  3 H₂O


According to equation at STP,

       67.2 L (3 moles) of H₂O is produced by  =  78 g of Al(OH)₃
So,
                65.0 L of H₂O will be produced by  =  X g of Al(OH)₃

Solving for X,
                                 X  =  (65.0 L × 78 g) ÷ 67.2 L

                                 X  =  75.44 g of Al(OH)₂
Result:
           75.44 g of Al(OH)₂ is needed to decompose in order to produce 65.0 L of water at STP in stoichiometry
6 0
2 years ago
Read 2 more answers
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