Explain attraction between the sodium ions and chloride ions
How does the strngth of the attraction between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions? How do you know?
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How many moles of sodium hypobromite, NaBrO, should be added to 1.00L of 0.050M hypobromous acid, HBrO, to form a buffer solution of pH 8.80?
A mixture is prepared by mixing a 0.10 L solution of 0.12 M NaCl with a 0.23 solution of 0.18 M MgCl2. What volume of a 0.20 M silver nitrate solution is required to precipitate all the Cl ions in the mixture as AgCl?
Determine the values of q, w, ?U, ?H, ?S, ?Stot and ?G for each stage of the cycle and for the cycle as a whole. Express your answer as a table of values.
The GPR (Ground Penetrating Radar) produced an electromagnetic radiation that had a frequency of 2.00 X 102 MHz. Determine the amount of energy (Kj) in this radiation.
A car travelling at 60 mph in a construction area skids into a stack of concrete barriers. Skid marks leading to the crash measures 150 ft. The car was travelling on a 3% upgrade on a pavement with friction factor of 0.30.
The inclined leg differential manometer as shown in Figure 1 below shows a reading along the inclined leg mercury manometer of 50mm. Determine the pressure difference between A and B.
The casting has a mass of 3 Mg. Suspended in a vertical position and initially at rest, it is given an upward speed of V mm/s in 0.3s using a crane hook H.
A mechanic uses a crowfoot wrench to loosen a bolt at C. The mechanic holds the socket wrench handle at points A and B and applies forces at these points.
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: The National Council for the Social Studies (NCSS) outlines a developmental sequence for social studies-the youngest children learn about their neighborhood
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