Determine the concentration of borax solution
If borax solution takes 0.76mL of 3M H2SO4 to neutralize a 10mLsample of Borax, Determine the concentration of borax solution (mol/L).
2Na++ 2B(OH)4-+H2SO4--->2B(OH)3+2Na++SO42-+2H2O
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When volume does the mixture contain now? At 60C when the percent relative humidity is defined as %RH=PH2O/P* H2O where the P H2Ois the partial pressure of water in sample and the P*H2O=0.197 atm is the equilibrium vapor pressure of water.
Light falls on a pair of slits which is .00204 cm apart. The slits are 91.4 cm from the screen. The first-order bright line is 1.98 cm from the central bright line. Determine the wavelength of the light? Answer must be in units of nm.
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At the lower point the pressure is around 1.67 x 105 Pa and the pipe radius is 2.70 cm. At the other point 2.50 m higher, the pressure is 1.33 x105 Pa and the pipe radius is 1.30 cm. (i) Determine the speed of flow in the lower section.
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