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nikitadnepr [17]
3 years ago
9

Convert 12.64 g of NaOH to moles

Chemistry
2 answers:
Luden [163]3 years ago
8 0
.316 moles just divide by the molar mass of naoh which is 39.997. So 12.64 divived by 39.997 is .3160237. that is 3.16x10-1
Sati [7]3 years ago
7 0
Molar mass of NaOH =22,990g/mol+15,999g/mol+1,001g/mol =39,99g/mol

n= mass/molar mass

moles of NaOH= 12,64 g * 1 mol NaOH /39,99g = 0,316 moles of NaOH in 12,64 g of NaOH
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What is formed when water chemically combines with carbon dioxide
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When water chemically combines with carbon dioxide, a Carbonic acid is formed.

<u>Explanation</u>:

  • Carbon dioxide responds with water in a solution to form a weak acid, carbonic acid. Carbonic acid disassociates into hydrogen particles and bicarbonate particles. The hydrogen particles and water respond with the most basic minerals modifying the minerals.  
  • Carbon dioxide and the other atmospheric gases disintegrate in surface waters. Dissolved gases are in equilibrium with the gas in the atmosphere. Carbon dioxide responds with water in a solution to form the weak acid, carbonic acid. Carbonic acid disassociates into hydrogen particles and bicarbonate particles.  
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3 years ago
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Consider a pot of water at 100 C. If it took 1,048,815 J of energy to vaporize the water and heat it to 135 C, how many grams of
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Explanation:

Latent heat of vaporisation = 2260 kJ/kg = 2260 J/g = L

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Let m = x g be the weight of water in the pot.

Energy required to vaporise water = mL = 2260x

Energy required to raise the temperature of water from 100 C to 135 C = msΔT = 70.35x

Total energy required = 2260x+x\times2.010\times(135-100)=2260x+70.35x=2330.35x

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