Answer:
mass = 0.2982 grams
Explanation:
Given that;
volume = 100.0 mL = 0.1 L
Molarity =0.040 M
Since Molarity = 
(x) no of moles = 0.040 × 0.1
= 0.004 moles
Also; to calculate the mass of KCl should you weigh to make this solution;
we have;
no of moles =
molar mass of KCl = 74.55 g/mol
∴
0.004 moles = 
mass = 0.004 moles * 74.55 
mass = 0.2982 grams
Hence, the mass of KCl should you weigh to make this solution is 0.2982 grams
Erosion is the scientific term for the breaking-down of any kind of rock or mineral. There is natural erosion, such as rain, ice, and wind, and there is Man-made erosion, such as smashing the rock or acid rain.
Answer:
They all vibrate, but they all move differently.
Explanation:
Similarities: They all consist of particles and vibrate, just at different frequencies.
Differences: The particles in solids move slowly and vibrate. In liquids, they move a bit quicker and slide past one another. They will also take the shape of the container they're in. In gases, they move freely at high speeds and also taking the shape of the container.
Hope this helped! :)
