- Express 4.6 in scientific notation?

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What is the molarity of potassium hydroxide solution if 25.00ml of KOH is required to neutralize 2.042g of KHC8H4O4 (204.23 g/mol)? Use the period of the earth (4.72 y), its
mean orbital radius and
the universal gravitational constant to calculate the mass of
sun.? Does Lightening emit EMP.? If i lifted 8 boxes at a weight of 20 newtons and the distance from. the ground to trunk wad 1 meter how mych work did i do? Find tan x/2 for x in the first quadrant?