Given mass of KNO₃=346g
Molar mass of KNO₃=(39.098)+(14)+(15.99*3)=101.068gmol⁻¹
Volume of Solution=750ml=0.75dm³
Molarity=(mass of solute/molar mass of solute)*(1/volume of sol. in dm³)
=(346/101.068)*(1/0.75)
=4.56 mol dm⁻³
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Well there are two possibilities. The noble gases technically have the lowest electronegativitey, but often they are referred to as being non reactive and stable. In which case for elements that are reactive group 1 has the lowest electronegativitey and tends to lose its electron.
Answer:
B.
Explanation:
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