Answer:
See explanation
Explanation:
2HCl(aq) + CaCO3(aq) ------->CaCl2(aq) + CO2(g) + H2O(l)
Number of moles of acid present = 50/1000 * 0.15 = 0.0075 moles
Number of moles of calcium carbonate = 0.054g/100 g/mol = 0.00054 moles
2 moles of HCl reacts with 1 mole of calcium carbonate
x moles of HCl reacts with 0.00054 moles of calcium carbonate
x = 2 * 0.00054/1
x = 0.00108 moles of HCl
Amount of acid left = 0.0075 moles - 0.0075 moles = 0.00642 moles
Reaction of HCl and NaOH
HCl(aq) + NaOH(aq) ------> NaCl(aq) + H2O(l)
Since the reaction is in the mole ratio of 1:1
0.00642 moles of HCl is neutralized by 0.00642 moles of NaOH
Answer:
Theoretical yield of C8H8BrNO:
In moles
0.000945
In grams
0.204
Explanation:
Theoretical yield of a reaction is defined as the quantity of the product obtained from the complete conversion of a limiting reactant in a chemical reaction. Theoretical yield can be expressed as grams or moles.
Equation of reaction:
C8H9NO + Br2 --> C8H8BrNO + HBr
Since C8H9NO is the limiting reagent, 1 mole of C8H9NO reacted to form 1 mole of C8H8BrNO
Mass of C8H9NO = 129 mg
= 0.129 g.
Molar mass of C8H9NO = 135.17 g/mol.
Number of moles of C8H9NO = mass/molar mass.
= 0.129/135.17
= 0.00095 moles of C8H9NO
Since 1 mole of C8H9NO yielded 1 mole of C8H8BrNO
Therefore, 0.000954 moles of C8H8BrNO
Theoretical yield (in grams) = molar mass * number of moles
= 214.06 * 0.00095
= 0.204 of C8H8BrNO
<span>Here are some
pH < 7
Sour taste (though you should never use this characteristic to identify an acid in the lab)
Reacts with a metal to form hydrogen gas Increases the H+ concentration in water
Donates H+ ions<span>
Turns blue litmus indicator red</span></span>
Answer:
To answer your question use the code ICE on here to get your answer works every time for me hope this helps
Beaker does thermometer measures the thermal energy in the air
