3 years ago

Balance Al2O3 + NaOH + H2O = NaAl(OH)4

Chemistry

1 answer:

vesna_86 [32]3 years ago

8 0

Answer:

Al₂O₃ + 2 NaOH + 3 H₂O = 2 NaAl(OH)₄

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The cruise control on a car is an example of a control loop.

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Why does the conversion of water vapor to liquid water make the air around it warmer?

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A 20.38 gram sample of cobalt is heated in the presence of excess sulfur. A metal sulfide is formed with a mass of 31.47 g. Dete

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Answer: The empirical formula of the metal sulfide is $CoBr_{2}$ .

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Given: Mass of metal = 20.38 g

Mass of metal sulfide = 31.47 g

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$Moles = \frac{mass}{molarmass}\\= \frac{20.38 g}{59 g/mol}\\= 0.345 mol$

Moles of bromine (molar mass = 80 g/mol) are as follows.

$Moles = \frac{(31.47 - 20.38) g}{80 g/mol}\\= \frac{11.09 g}{80 g/mol}\\= 0.138 mol$

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Use dimensional analysis to convert 14.5mi/hr to km/s

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Answer:

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Explanation:

1. Convert miles to kilometres

14.5 mi × (1.609 km/1 mi) = 23.33 km

2. Convert hours to seconds

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3. Divide the distance by the time

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4 years ago