A 105g slab of metal is dropped into a cylinder which has 69.9ml of water in it. The water goes up to 83.3ml with the metal slab
2 answers:
Answer: The density of metal is 7.83 g/ml
Solution :
Given, Mass of metal = 105 g
First we have to calculate the volume of sand
Volume of metal = volume of water displaced= (83.3-69.9)=13.4 ml
Now we have to calculate the density of metal.
Formula used :
Now put all the given values in this formula, we get the density of metal.
Therefore, the density of metal is 7.83 g/ml
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Answer:
1) 0.18106 M is the molarity of the resulting solution.
2) 0.823 Molar is the molarity of the solution.
Explanation:
1) Volume of stock solution =
Concentration of stock solution =
Volume of stock solution after dilution =
Concentration of stock solution after dilution =
( dilution )
0.18106 M is the molarity of the resulting solution.
2)
Molarity of the solution is the moles of compound in 1 Liter solutions.
Mass of potassium permanganate = 13.0 g
Molar mass of potassium permangante = 158 g/mol
Volume of the solution = 100.00 mL = 0.100 L ( 1 mL=0.001 L)
0.823 Molar is the molarity of the solution.