Answer:
152.4 g of O₂ are consumed.
Explanation:
We start from the combustion reaction:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
We convert the mass of propane to moles:
41.9 g . 1mol /44g = 0.952 moles
Ratio is 1:5. 1 mol of propane consumes 5 moles of oxygen at propane combustion
Then, 0.952 moles may consume (0.952 . 5) /1 = 4.76 moles.
We convert moles to mass → 4.76 mol . 32g/mol = 152.4 g
Main Answer: The resultant solution will have 0.125M of HCl.
Explanation:
Given:
Volume of NH3 V1= 25ml = 0.025lit
Molar concentration of NH3 M1= 0.1M
It is titrated with HCl
Molar concentration of HCl M2= 0.25M
Volume of HCl V2= ?ml
At equilibrium,
M1V1 = M2V2
V2 = M1V1/M2
V2 = (0.1*0.025)/0.25
V2= 0.01lit =0.01*1000 = 10ml
Number of moles = M2*V2 = 0.25 * 0.01 = 0.0025
Now 10ml of HCl is added.
then,
V2 = 10 + 10 = 20ml
Molar concentration of HCl = number of moles/Volume
= 0.0025/0.02
= 0.125M
The resultant solution will have 0.125M of HCl.
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Silver has only 1 valence electron.
The electron configuration of Silver gives one outer shell electron, basically a valence electron.
Answer:
c
Explanation:
all fins are for movement
Answer:
Here's what I get.
Explanation:
Your unbalanced nuclear equation is:
The main point to remember in balancing nuclear equations is that the sums of the superscripts and the subscripts must be the same on each side of the equation.
Then
95 = x + 2, so x = 95 - 2 = 93
243 = y + 4, so y = 243 - 4 = 239
Element 93 is neptunium, so the nuclear equation becomes
