Answer:
The answer to your question is: 4.5 %
Explanation:
0.126 moles of AgNO3
mass percent = ?
mass of water = 475 g
Formula
weight percent = weight of solute / weight of solution x 100
Weight of solute
MW AgNO3 = 108 + 14 + (16 x 3)
= 108 + 14 + 48
= 170 g
170 g of AgNO3 ------------------- 1 mol
x --------------------- 0.126 moles
x = (0.126 x 170) / 1 = 21.42 g of AgNO3
Weight percent = 21.42/475 x 100
= 4.5 %
Answer:
And if someone calls you dense, they think nothing can get into your thick skull. Dense comes from the Latin densus which means thick and cloudy. In general, the word means packed tight and gives the sense that something is difficult to get through.
Explanation: Look it up :)
It’s B
Silicon is used for electronic devices because it is an element with very special properties. One of it's most important properties is that it is a semiconductor.
Density= 5m^3
Explanation:
Here, the Mass of an object is 25g
To convert grams into kilograms, we need to divide 25 by 1000
so, the 25g=25/1000 = 0.025kg.
The volume of an object is given by 5cm^3 ( cubic centimetre)
To convert cubic centimetre to meter cube, we need to divide 5 by 1000.
So, 5cm^3=5/1000=0.005m^3
Finally, the equation of density is
DENSITY= MASS/VOLUME
Density = 0.025/0.005
= 5m^3
Hence, the density of the object is 5m^3.
