Answer:
d = 3 g/cm³
Explanation:
Given data:
Mass of stone = 27 g
Volume of water = 10 cm³
Volume of water+ stone = 19 cm³
Volume of stone = ?
Density of stone = ?
Solution:
Volume of stone = total volume - volume of water
Volume of stone = 19 cm³ - 10 cm³
Volume of stone = 9 cm³
Density of stone:
d = m/v
d = 27 g/ 9 cm³
d = 3 g/cm³
1.199 M is the concentration of KCI in the resulting solution.
<h3 /><h3>What are moles?</h3>
A mole is defined as 6.02214076 × of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
No.of moles of KCI
= 0.599 moles
Vol.of the solution,V= 500 ml
= 0.5 liter
Molarity
= 1.199 M
Hence, 1.199 M is the concentration of KCI in the resulting solution.
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Answer:
0.001341 mol/L s is the average rate from 8.0 to 20.0 seconds.
Explanation:
Average rate of the reaction =
=Average rate of the reaction during the given time interval.
= Change in concentration of reactant with respect to time.
= Change in time.
=Concentration of reactant at time
=Concentration of reactant at time
So, at the concentration of :
And at the concentration of :
The average rate of the reaction at given interval will be given as:
0.001341 mol/L s is the average rate from 8.0 to 20.0 seconds.
Answer:
6 moles of ZnSO₄ produces 6 moles of Ag₂SO₄ .
Explanation:
Given data:
Moles of ZnSO₄ = 6.00 mol
Moles of Ag₂SO₄ = ?
Solution:
Chemical equation:
2Ag + ZnSO₄ → Ag₂SO₄ + Zn
Now we will compare the moles of ZnSO₄ and Ag₂SO₄.
ZnSO₄ : Ag₂SO₄
1 : 1
6.00 : 6.00
So 6 moles of ZnSO₄ produces 6 moles of Ag₂SO₄ .