When 0750 g sample of an unknown substance is dissolved in
When 0.750 g sample of an unknown substance is dissolved in 20.0 g of benzene, the freezing point of the solution is 4.53 °C. What is the molar mass of the substance? (The normal freezing point of benzene is 5.53 °C and Kf is 5.12° C/m.)
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a step-down transformer is used for recharging the batteries of portable devices the turns ratio n2n1 for a particular
1 consider the following potential investmentdiscount rate10nbspnbsptimecash
a 050 ww aqueous solution of acetic acid has a density of 09989 g ml-1 a calculate the molality and the molarity of the
a series ac circuit contains a 150 resistor a 190 inductor a 450 capacitor and an ac power source of voltage amplitude
when 0750 g sample of an unknown substance is dissolved in 200 g of benzene the freezing point of the solution is 453
in an l-r-c series circuit 305 0401 and 598times10-8 when the ac source operates at the resonance frequency of the
the bond length of rbbr is 343 pm what would be the dipole moment in d of this compound by assuming a completely ionic
you are required to read the following statement issued by icaa institute of chartered accountants in australia and
a zero-resistance rod sliding to the right on two zero-resistance rails is separated by the distance l 051 m the rails
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