Determine how many grams of water can be melted
Determine how many grams of water can be melted by the 25.0 kJ of heat? The molar enthalpy of fusion (melting), DHfus, for water is 6.01kJ/mol.
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A triglyceride is reacted with NaOH to produce a carboxylic acid salt (the soap) and glycerol Lard, mostly made of trioleic acid (TOA) is used with Lye (NaOH) in homemade variations. Saponification is the process by which soap is made.
If random assignment of patients to treatments did good job of eliminating bias, possible lurking variables such as smoking history, asthma, and hay fever should be similar in all 4 groups.
Calculate the value of the Arrheniuspre-exponential if k = 4520 M-1 s-1 at 770 K? An Arrhenius plot (ln k vs. 1/T) for a second order reaction (2A -> C) formed a straight line with a slope of -6.77e+03 K.
Examine the differences between the ANOVA statistic that is used to assess independent-measures designs with the ANOVA statistic that is used to assess repeated-measures designs.
Determine the amount of heat required to change the 25.0 g ice at-15.0ºC to steam at the 100ºC. (Some constants for H2O: Heat of fusion = 333 J/g; Heat of vaporization = 2260 J/g;
After one year passes, you pay off $25000 of loan. How much still owe on loan? After another year passes, you want to pay off loan. How much need to pay to pay it off?
A current study showed women spent average of 36 hours per week watching TV and men 30 hours per week. Suppose that the distribution of hours watched follows the normal distribution for both groups, and that the standard deviation among the women
The molar volume of liquid methanol is 36.16ml. The normal melting point of 175.47 degree Kelvin is raised to 176.61 degree Kelvin under a pressure of 100atm.
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