<span>Na</span>₂<span>CO</span>₃<span> + 2 HCl = 2 NaCl + CO</span>₂<span> + H</span>₂<span>O
106 g Na</span>₂CO₃ -------- 2 x 36.5 g HCl
<span> x g Na</span>₂CO₃ ---------- 750 g HCl
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Mass of Na</span>₂CO₃ = 750 x 106 / 2 x 36.5
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Mass ( Na</span>₂CO₃) = 79500 / 73
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Mass = 1089.04 g
Number of moles = 1089.04 / 106 => 10.27 mols of Na</span>₂CO₃
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hope this helps!
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Answer: 95%
Explanation:
We first write down the balanced reaction equation as shown in the image attached. Next we identify the limiting reactant from the given data. Oxygen is the limiting reactant in this case and it is the mass of oxygen reacted that is used in the estimation of the theoretical yield as shown in the image attached. The percentage yield is then calculated according to the formula shown in the image attachment.
For a voltaic cell consisting of chromium, an electrode dipped in a 1.20 M chromium (III) nitrate solution and a tin electrode dipped in a 0.400 M tin (II) nitrate solution, the cell potential at 298 K is mathematically given as
Ecell = 0.577 V
<h3 /><h3>What is the cell potential at 298 K?</h3>
Generally, the equation for the Oxidation and Reduction is mathematically given as
Cr(s) ------------------ Cr+3(aq) + 3e- ] x 2 ...O
Sn+2(aq) + 2e- ------------ Sn(s) ] x 3 ...R
Reaction
2 Cr(s) + 3 Sn+2(aq) --------------- 2 Cr+3(aq) + 3 Sn(s)
Therefore
Eicell = - 0.14 - ( - 0.74)
Eicell = 0.60
In conclusion
Ecell = 0.577 V
Read more about Temperature
brainly.com/question/13439286
Answer: The given statement is True.
Explanation:
The heat will move from hotter object to the cooler object in search of thermal equilibrium. Heat transfer will only stop when both the bodies are at the same temperature.
Heat transfer can be done using conduction , convection or radiation.
The statement that Heat transfer is the movement of heat from a hotter object to a cooler object is True.