Answer:
0,020 moles of NaCl
Explanation:
For the reaction:
NaOH + HCl → NaCl + H₂O
The moles of NaOH are:
10,0 mL ≡ 0,0100L × 2,4mol/L = 0,024 moles of NaOH.
In the same way, moles of HCl are:
5,0 mL ≡ 0,0050L × 4,0mol/L = 0,020 moles of HCl.
The limiting reactant is the reactant that is completely used in the reaction.
In this case, as moles of HCl are less than moles of NaOH, limiting reactant is HCl.
That means that moles of NaCl that are produced are the same moles of HCl, <em>0,020 moles</em>
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I hope it helps!
Answer:
The easiest way to identify a double displacement reaction is to check to see whether or not the cations exchanged anions with each other.
Explanation:
if the states of matter are cited, is to look for aqueous reactants and the formation of one solid product (since the reaction typically generates a precipitate).
The mass of water is calculated as follows
find the moles of each reagent
that is moles = mass/molar mass
for H2s = 84.7/ 34= 2.485 moles
O2 = 78.4 / 32 = 2.45 moles
since 2 moles of H2S react with 3 moles of O2 therefore 2.45 moles of oxygen will be used up therefore O2 is the limiting reagent and H2S is in excess
2H2S + 3O2 ----->2So2 + 2H2O
by use of mole ratio between O2 and H20 which is 3:2 the moles of H2O is therefore = 2.45 x2/3= 1.63 moles of H2O
mass of H2O = moles x molar mass
= 1.63 g x 18g/mol = 29.4 g
<h3><u>Answer;</u></h3>
<u> = 1319.45 Joules </u>
<h3><u>Explanation;</u></h3>
Kinetic energy is the energy possessed by a body in motion;
It is given by the formula; 1/2mv², where m is the mass of the body and v is the velocity.
mass = 89.5 kg and v =5.43 m/s
Therefore;
Kinetic energy = 1/2 × 89.5 × 5.43 ²
<u> = 1319.45 Joules </u>
