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alexdok [17]
3 years ago
14

How many moles in 53g of palladium 216g of silver 46g of tungsten

Chemistry
2 answers:
Helga [31]3 years ago
7 0
To answer this, all you have to do is take the mass of the sample, in grams, and divide it by the atomic/molecular mass of the substance, in amu (atomic mass units)
So, here are my answers:
(i) 53g of Palladium = 53/106 = 0.5 moles
(ii) 216g of Silver = 216/108 = 2 moles
(iii) 46g of Tungsten = 46/184 = 0.25 moles

Hope I helped!! xx
snow_tiger [21]3 years ago
5 0
Moles = Mass / Mr 
You basically need to open the periodic table and divide the mass to find out the moles. 

Palladium = 53/ 106
                 = 0.5 moles

Silver = 216/108
          = 2 moles

Tungsten = 46/ 184
                = 0.25 moles
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Se requieren preparar 1500 ml de una solución al 55% en masa de hidróxido de calcio, sabiendo que la densidad de dicha solución
Masja [62]

Respuesta:

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Explicación:

Paso 1: Calcular la masa de solución

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1500 mL × 1.17 g/mL = 1.76 × 10³ g

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The arrangement of orbitals in order of increasing energy is shown in the answer above.

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The term oxidation was first used by Antoine Lavoisier to signify reaction of a substance with oxygen. Much later, it was realized that the substance, upon being oxidized, loses electrons, and the meaning was extended to include other reactions in which electrons are lost, regardless of whether oxygen was involved.

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Explanation:

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