Calculate the moles and hence mass of sodium carbonate
0.5054 grams of soda ash was diluted with 25 mL of water. It was titrated with 90.51 mL of 0.08042M HCl.Calculate the moles and hence mass of sodium carbonate in thesoda ash.
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There are 3 coins in a box. One is a two-headed coin, another is a fair coin, and the third is a biased coin that comes up heads 75 percent of the time. When one of the 3 coins is selected at random and flipped, it shows heads. What is the probabi
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A 150 N sled is pulled up a 28o slope at a constant speed by a firce of 100 N. What is the coefficient of kinetic friction between sled and slope?
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The edges of a cube consist of equal resistors of resistance R, which are joined at the corners. Let a battery be connected to two opposite corners of a face of the cube. What is the efective resistance?
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