Describe how you would prepare 150ml of 0.02N NaOH in the laboratory.

Explanation:

molar mass of any subtance in 1 litre water gives 1N solution

for NaOH molar mass =40 g

40g  --- 1000ml ---1N

Xg 150 0.02

X= 40*150*0.02/1000*1 =0.12 g

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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