How many moles of HCl are present in 35.5 mL of a 0.200 M solution?
A) 0.236 mol
B) 0.178 mol
C) 0.974 mol
D) 0.00710 mol
E) 0.195 mol
Question 2
A 12.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity of 5.65 kJ/C. Using the information below, determine the final temperature of the calorimeter if the initial temperature is 25.0C.
The molar mass of ethanol is 46.07 g/mol.
C2H5OH(l) + 3 O2(g) 2 CO2(g) + 3 H2O(g) Hrxn = -1235 kJ
A) 53.4C
B) 28.1C
C) 111C
D) 85.7C
E) 74.2C
Question 3
What precipitate is most likely formed from a solution containing Ba+2, Na+1, OH-1, and CO3-2.
A) NaOH
B) BaCO3
C) Na2CO3
D) Ba(OH)2
Question 4
Is 25 kilometers per liter good gas mileage for a VW Rabbit diesel? Hint: How do we measure mileage in the English system?
What will be an ideal response?
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Habitat reconstruction is possible based on the kinds of plants present at past sites.
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