Reaction:
<span>HCl + NaOH ---> NaCl + H2O
</span><span>1 mole of HCl = 36,5 g
</span><span>1 mole of NaOH = 40g
</span><span>so, according to the reaction:
</span><span>1 mol HCl = 1 mol NaOH
</span>so, we need > 36,5 g HCl (<u>hydrochloric acid</u><span>)
</span><u>
answer: 36,5 g HCl (hydrochloric acid)
</u><span> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
</span><span>next question.
</span><span>
1 mole of NaCl = 58,5 g
</span><span>1 mole of H2O = 18g
</span>
so, according to the reaction:
1 mole of HCl (36,5 g) <span>----------------- - 1 mole of NaCl (58,5 g)
</span><span>(the same for NaOH)
i
</span>1 mole of HCl<span> (36,5 g) ------------------ 1 mole of H2O (18 g)
</span>(the same for NaOH)
<span>so, this reaction is stechiometric
</span><u>
answer: 58,5 g NaCl i 18g H2O</u>
HA is a weak acid so there should be little amount of HA and then H+ and A- in the beaker so the last one is true a weak acid never converts completely to H+ and A-
The required amount of KClO₃ to prepare a saturated solution is 48 grams.
<h3>What is solubility?</h3>
The ability of a material, the solute, to create a solution with another substance, the solvent, is known as solubility.
Given graph is plotted between the temperature and solubility of the substance at 100g of water, so for the given points calculation will be:
- According to the graph for the KClO₃ we require almost 48g of KClO₃ to prepare a saturated solution.
- From the graph it is clear that at 40°C 40g of KCl will dissolve in 100g of water then amount of KCl which will dissolve in 68g of water will be calculated as:
x = (40)(68) / (100) = 27.2g
- On the basis of the graph, if 75 grams of calcium chloride is added to 100 g of water at 25°C then the obtained solution is the unsaturated as they have les solute then the limit.
- Based on the graph cerium sulfate behaves like a precipitate which will not dissolve at any temperature and present in the physical state.
- We can add more 30g to make the KCl solution saturated.
Hence, we require almost 48g of KClO₃ to prepare a saturated solution of KClO₃.
To know more about solubility, visit the below link:
brainly.com/question/16903071
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B. a sugar crystal
Because sugar comes from plants, it is classified as an organic compound, not a mineral.
Answer:
increases the gravitional pull on tge pane
