Hey there!
In order to solve for the percentage of water in the compound, you will first need to find its total molar mass. You can do this by adding up the molar masses of each individual element in the compound. Then, you will divide the mass that you find of the water molecules by the total mass to get the percentage.
→ Na₂CO₃ ×<span> 10 H</span>₂<span>O
</span>→ Na₂ = 22.9898 × 2 = 45.9796
→ C = 12.0107
→ O₃ = 15.999 × 3 = 47.997
→ 10 H₂O = 18.015 × 10 = 180.15
Now, just add all of those numbers up for the total molar mass.
→ 45.9796 + 12.0107 + 47.997 + 180.15 = <span>286.1373
</span>
The last step is to divide the molar mass of the 10 water molecules by the total mass.
→ 180.15 ÷ 286.1373 = <span>0.62959 </span>≈ 0.63
Your answer will be about 63%.
Hope this helped you out! :-)
The correct type of heat transfer for A, B, and C are conduction, convection and radiation respectively.
<h3>What is heat transfer?</h3>
Heat transfer is a process in which amount of heat will be transferred from one object to any other object by various means.
- In type A, heat is transferred through conduction process as in this transfer takes place due to direct contact of particles.
- In type B, heat is transferred through the convection process as in that process transfer of heat takes place through the medium.
- In type C, heat transfer done by the radiation as in that transfer through empty space.
Hence at A, B and C heat transfer done through conduction, convection and radiation respectively.
To know more about heat transfer, visit the below link:
brainly.com/question/2341645
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Br2 or O2 or N2 or H2 or F2 or I2 etc.
Hey
Calculate the temperature change that occurs when 254 cal of heat are added to 24 g of water
answer: 800
