Question

A student determined the heat of neutralization of sulfuric acid mixed with sodium hydroxide solution using the procedure described in this experiment. 35.0 mL of 1.00 M H2SO4 were added to 70.5 mL of 1.00 M NaOH solution.

1)Calculate the mass of the reaction mixture. Assume that the density of the mixture is 1.03 g/mL.

_______g/mL

2)Calculate the number of moles of each reagent that are consumed when the solutions are mixed. Record your responses using decimal notation rather than scientific notation.

_______moles H2SO4

_______moles NaOH

3)If ΔT is 7.83oC, calculate the heat transferred from the reaction (i.e., q). Assume that the specific heat of the mixture is 3.89 J g-1 deg-1.

_______J

Answer #1

1) total volume of mixture = 35ml + 70.5 ml = 105.5ml

mass = density volume

= 1.03 105.5 = 108.665 gm

mass of the reaction mixture = 108.665 gm

2) 35 ml = 0.035 L

no. of mole = molarity volume of solution in liter

= 1.00 0.035 = 0.035 mole

0.035 mole of H_{2}SO_{4}

70.5 ml = 0.0705 L

no. of mole = molarity volume of solution in liter

= 1.00 0.0705 = 0.0705 mole

0.0705 mole of NaOH

3) q = mass specific heat ΔT

q = 108.665 3.89 7.83 = 3309.7946 J

heat transferred from the reaction = 3309.7946 J

10. In an effort to calculate the heat of neutralization of an
acid, a student mixed 50.0 mL of 1.0 M H2SO4 with 100 mL of 1.0 M
NaOH in a calorimeter and observes the temperature change. Write
the balanced chemical equation for this reaction.
If the initial temperature of the acid and base was 20.1 °C and
the temperature rose to 23.7 °C after mixing the two, what is the
heat of neutralization for H2SO4?
Assume that the solutions...

17. A common laboratory reaction is the neutralization of an
acid with a base. When 50.0 mL of 0.500 M HCl at 25.0 °C is added
to 50.00 mL of 0.500 M NaOH at 25.0 °C in a coffee cup calorimeter,
the temperature of the mixture rises to 28.2 °C. What is the
enthalpy of reaction per mole of acid? Assume the mixture has a
specific heat capacity of 3.89 J/g·° C and a density of 1.09 g/mL
while the...

Aqueous sulfuric acid (H2SO4) will react with with solid sodium
hydroxide (NaOH) to produce aqueous sodium sulfate (Na2SO4) and
liquid water (H2O). Suppose 23. g of sulfuric acid is mixed with
24.8 g of sodium hydroxide. Calculate the minimum mass of sulfuric
acid that could be left over by the chemical reaction. Be sure your
answer has the correct number of significant digits.

Aqueous sulfuric acid H2SO4 will react with solid sodium
hydroxide NaOH to produce aqueous sodium sulfate Na2SO4 and liquid
water H2O . Suppose 81. g of sulfuric acid is mixed with 36.5 g of
sodium hydroxide. Calculate the maximum mass of water that could be
produced by the chemical reaction. Round your answer to 3
significant digits.

In an acid-base neutralization reaction, 43.74 mL of 0.500 M
potassium hydroxide reacts with 50.00 mL of sulfuric acid solution.
What is the concentration of the H2SO4 solution?
H2SO4(aq) + 2KOH(aq) ---> 2 H2O(l) + K2SO4(aq)

A 100.0 ml sample of 1.00 M NaOH is mixed with 50.0 ml of 1.00 M
H2SO4 in a large Styrofoam coffee cup; the cup is fitted with a lid
through which passes a calibrated thermometer. the temperature of
each solution before mixing is 22.5°C. After adding the NaOH
solution to the coffee cup and stirring the mixed solutions with
thermometer; the maximum temperature measured is 32.1 C. Assume
that the density of the mixed solutions is 1.00 g/ml that...

A 96.2 mL sample of 1.00 M NaOH is mixed with 48.1 mL of 1.00 M
H2SO4 in a large Styrofoam coffee cup; the
cup is fitted with a lid through which passes a calibrated
thermometer. The temperature of each solution before mixing is
22.25 °C. After adding the NaOH solution to the coffee cup and
stirring the mixed solutions with the thermometer, the maximum
temperature measured is 30.90 °C. Assume that the density of the
mixed solutions is 1.00...

Aqueous sulfuric acid
H2SO4
will react with solid sodium hydroxide
NaOH
to produce aqueous sodium sulfate
Na2SO4
and liquid water
H2O
. Suppose 71. g of sulfuric acid is mixed with 22.5 g of sodium
hydroxide. Calculate the maximum mass of water that could be
produced by the chemical reaction. Be sure your answer has the
correct number of significant digits.

Aqueous sulfuric acid H2SO4 will react with solid sodium
hydroxide NaOH to produce aqueous sodium sulfate Na2SO4 and liquid
water H2O . Suppose 72.6 g of sulfuric acid is mixed with 27. g of
sodium hydroxide. Calculate the maximum mass of water that could be
produced by the chemical reaction. Be sure your answer has the
correct number of significant digits.

A 107.2 mL sample of 1.00 M NaOH is mixed with 53.6 mL of 1.00 M
H2SO4 in a large Styrofoam coffee cup; the
cup is fitted with a lid through which passes a calibrated
thermometer. The temperature of each solution before mixing is
22.45 °C. After adding the NaOH solution to the coffee cup and
stirring the mixed solutions with the thermometer, the maximum
temperature measured is 32.10 °C. Assume that the density of the
mixed solutions is 1.00...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 7 minutes ago

asked 17 minutes ago

asked 38 minutes ago

asked 42 minutes ago

asked 43 minutes ago

asked 43 minutes ago

asked 46 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago