Answer:
0.21 g
Explanation:
The equation of the reaction is;
NaCl(aq) + AgNO3(aq) -----> NaNO3(aq) + AgCl(s)
Number of moles of NaCl= 0.0860 g /58.5 g/mol = 0.00147 moles
Number of moles of AgNO3 = 30/1000 L × 0.050 M = 0.0015 moles
Since the reaction is 1:1, NaCl is the limiting reactant.
1 mole of NaCl yields 1 mole of AgCl
0.00147 moles of NaCl yields 0.00147 moles of AgCl
Mass of precipitate formed = 0.00147 moles of AgCl × 143.32 g/mol
= 0.21 g
The intensity of the sound will increase more as the energy of the sound wave increases.
I hope this helps you:)
Answer:
An increase in temperature indicates that the molecules of gas speed up.
Explanation:
The molecular kinetic theory states that the average kinetic energy of gas particles (molecules) is proportional to the absolute (Kelvin) temperature of the gas, and all gases at the same temperature have the same average kinetic energy.
Therefore, as the temperature increases so the kinetic energy increases.
It is also known that the kinetic energy is proportional to the squared speed of the particles, therefore the higher the kinetic energy the average speed of the molecules:
- higher temperature → higher kinetic energy → higher average speed
N=24/12
n=2
where n= no. of moles
tree rings
Explanation:
A dendrochronologist interprets tree rings to ascertain the age of a particular tree.
Dendrochronology is a a scientific process that involves the dating of tree rings to determine the age of a particular tree.
- It is sometimes called tree-ring dating.
- This method of dating is mostly applicable to woody trees that have large years of growth.
- New rings develops in order to accommodate new structural materials like the secondary xylem and phloem in them.
- The nature of this secondary growth pattern can be used to systematically determine how old a particular tree is.
Learn more;
Radiometric dating brainly.com/question/7022607
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