Calculate concentration of hydroxide ions in original sample
A 25ml sample taken from saturated solution of Ca(OH)2 required 36.0ml of 0.100M HCl to titrate. Calculate the concentration (mol/L) of hydroxide ions in the original sample.
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A standard steel specimen of 13 mm diameter elongated 22 mm when it was subjected to a tensile force of 29.5 kN if the specimen has a length of 200 mm and that force applied within elastic range. what is the elastic modulus of elasticity ?
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Given that the specific heat capacities of ice and steam are 2.06 J/g°C and 2.03 J/g°C, the molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat capacity of water is 4.18 J/g
Thomas poured 25 mL of 0.60 M HCl into a large bottle. He then added enough water so that the new (diluted) concentration was 0.10 M HCl. How much water did Thomas add?
A helical spring of stiffness k is cut into two halves and a mass m is connected to the two halves as shown below Fig. 1-(a). The natural time period of this system is found to be 0.5 s.
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