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The following mass-volume data for five different samples of a unknown were collected. Sample 1. mass,g = 6.32 volume, mL= .80 Sample 2. mass,g = 9.50 volume, mL= 1.40 Sample 3. mass,g = 16.50 volume, mL= 2.30 Sample 4. mass,g = 20.07 volume, mL= 2.90 Sample 5. mass,g = 24.50 volume, mL= 3.41 1. Calculate the slope of the straight line 2. What is the density of the substance 3. Briefly explain why it is more accurate to use the slope of the plot to determine the density than it is to use data from a single determination
1) Draw all aldehyde and ketone isomers of C 6 H 12 O. 2) What is the reaction that occurs with hexanal and propanol (give both the hemiacetal and acetal products)?
you have a buffer system made up of equimolar amount of carbonic acid,H2CO3, and sodium bicarbonate,NaHCO3. Write equations to show how this buffer behaves when (a) HCL is added and (b) NaOH is added.
Determine the extent of reaction and amounts of B & Z and A reaction having time independent stoichiometry follows the equation
A sample of nitrogen gas is collected over water at a temperature of 23.0 degrees Celcius. What is the pressure of the nitrogen gas if atmospheric pressure is 785 mm Hg?
a sample of a compound containing only magnesium and oxygen is found to have 194g Mg and 256g of O. What percentages of Mg and O in this compound?
If 420 Joules are added to 20 grams of water to 30oC, what will be the final temperature of the water?
Inversion of Configuration and Determination of R/S. Draw a compound with an asymmetric center. Rotate so that you can determine whether it is R or S. Invert the stereochemistry
How many milliliters of 6 M HNO3 would you add to 300 mL of the buffers solution to change the pH from 5.09 to 5.03?
The vapor pressure of benzene,C6H6 is 40.1mmHg at 7.6C. what is its vapor pressure at 60.7C? The molar heat of vapotization for benzene is 31.0kg/mol
A gas occupies a volume of 458 mL at a pressure of 1.01 kPa and a temperature of 295 K. When the pressure is changed, the volume becomes 477 mL.
Consider the compound (Z)-3-hexene (B). Draw the bondline structures of the isomers of this compound in the manner requested. i) an isomer E that is the most reactive or reacts at the fastest rate during an addition reaction.
Determining a Four Stroke Engine's Dimensions Based on its Power, The engine produces indicated power of 35 HP. While it is running at 2500 RPM. Find the dimension of the engine.
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