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RideAnS [48]
3 years ago
5

How many grams of NaBr are needed to produce 187 grams of CaBr2

Chemistry
2 answers:
Radda [10]3 years ago
7 0
Nabr= 102.9g
cabr2= 199.9g

that means 2(102.9)=205.8g nabr produces 199.9g cabr
and x g of nabr produces 187g cabr2

205.8/x=199.9/187

so answer is 192.5 g nabr

andrey2020 [161]3 years ago
6 0
You will need 96.3g (3sf)
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A and 3

B and 2

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2 years ago
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an unknown molecule is found to consist of 24.2% carbon by mass, 4.0% hydrogen by mass and the remaining mass is due to chlorine
Paha777 [63]

Answer:

C3 H6 Cl 3

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C -24.2%

H -  4.0%

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C -24.2 g

H -  4.0 g

Cl - 73.8 g

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H -  4.0 g/1.0 g/mol = 4. 0 mol

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Ratio of these elements gives simplest formula of the substance

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3 years ago
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