Answer:
Explanation:
Molarity is a measure of concentration in moles per liter.
There are 0.250 moles of sodium hydroxide (NaOH) and 500 milliliters of water. We need to convert milliliters to liters. Remember that 1 liter contains 1000 milliliters.
Now we have the values to solve for molarity:
- moles= 0.250 mol NaOH
- liters= 0.5 L
Substitute the values into the formula.
Divide.
- 1 mole per liter (mol/liter) is equal to 1 Molar or M.
- Our answer of 0.5 moles of sodium hydroxide per liter is equal to 0.5 M NaOH
The molarity of the solution is <u>0.5 M NaOH</u>
The answer is the third one. John Dalton watched that when components join in an exacerbate, the proportion of their masses will dependably be the same. Dalton was an English scientist. John Dalton assembled confirm for the presence of molecules by measuring the masses of components that come to shape mixes.
LiCl is the answer to your question. Explanation: The rest are chemistry formulas added together. For example, Li3Al is a <span> lyonsite molybdate. This means that it is combined with something else. Hope this helps, ask me if you have any more questions!
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The scientist that was the first to use the telescope in astronomy was Newton
Answer:
The correct answers are electricity and discharge
Explanation:
Van de Graaff generator is an electrostatic generator. It is used for producing high voltage static electricity. It consists of a hollow metal sphere. The charges is accumulated on it from continuous motion of the belt which is made of an insulating material.
Due to polarization, the charges builds up on an object. Van de Graaf generator is an example of static charge.
Static discharge occurs when the built-up charges flow from the object. Lightning is an example of static discharge. Lightning occurs when the clouds having an opposite charges collide each other.
Therefore, building up electric charges on a Van de Graaff generator is an example of static electricity. Lightening is an example of static discharge.
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