Question
In: Chemistry
A student designs an ammeter (a device that measures electrical current) that is based on the...
A student designs an ammeter (a device that measures electrical current) that is based on the electrolysis of water into hydrogen and oxygen gases. When electrical current of unknown magnitude is run through the device for 3.50 min , 11.4 mL of water-saturated H2(g) is collected. The temperature and pressure of the system are 25 ∘C and 715 torr.
How many moles of hydrogen gas are produced?
Express your answer to three significant figures and include the appropriate units.
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
A student designs an ammeter (a device that measures electrical current) that is based on the...
A student designs an ammeter (a device that measures electrical
current) that is based on the electrolysis of water into hydrogen
and oxygen gases. When electrical current of unknown magnitude is
run through the device for 1.70 min , 13.1 mL of water-saturated
H2(g) is collected. The temperature of the system is 25.5 ∘C, and
the atmospheric pressure is 752 torr What is the magnitude of the
current in amperes?
A student designs an ammeter (a device that measures electrical current) that is based on the...
A student designs an ammeter (a device that measures electrical
current) that is based on the electrolysis of water into hydrogen
and oxygen gases. When electrical current of unknown magnitude is
run through the device for 1.50 min , 15.4 mL of water-saturated
H2(g) is collected. The temperature and pressure of the system are
25 ∘C and 715 torr.
Calculate the magnitude of the current in amperes if the number
of moles of hydrogen gas produced is 5.73×10−4 mol
A student designs an ammeter (a device that measures electrical current) that is based on the...
A student designs an ammeter (a device that measures electrical
current) that is based on the electrolysis of water into hydrogen
and oxygen gases. When electrical current of unknown magnitude is
run through the device for 2.50 min , 14.4 mL of water-saturated
H2(g) is collected. The temperature and pressure of the system are
25 ∘C and 715 torr .
Calculate the magnitude of the current in amperes if the number
of moles of hydrogen gas produced is 5.36×10−4 mol...
A student designs an ammeter (a device that measures electrical current) that is based on the...
A student designs an ammeter (a device that measures electrical
current) that is based on the electrolysis of water into hydrogen
and oxygen gases. When electrical current of unknown magnitude is
run through the device for 2.00 min , 14.7 mL of water-saturated
H2(g) is collected. The temperature and pressure of the system are
25 ∘C and 715 torr.
How many moles of hydrogen gas are produced? 5.47*10^-4 mol
Calculate the magnitude of the current in amperes if the number...
For a physiology class experiment, a student is fitted with a lightweight waterproof device that measures...
For a physiology class experiment, a student is fitted with a
lightweight waterproof device that measures her average pulse rate
over 2-hourly intervals. Consider 12 consecutive intervals over a
24-hour period, and let X be the number of these intervals in which
the average pulse rate is less than 100 beats per minute. Is it
reasonable to treat X as an observation from a binomial
distribution? Justify your answer.
Read how can you design an impedance plesmythography device that measures changes in electrical resistance across...
Read how can you design an impedance plesmythography device that
measures changes in electrical resistance across the chest with
respiration. Compare it with the pneumatic compression
belt-triggering type.
An insurance policy on an electrical device pays a benefit of $2850 if the device fails...
An insurance policy on an electrical device pays a benefit of
$2850 if the device fails during the first year. The amount of the
benefit decreases by $950 each successive year until it reaches 0 .
If the device has not failed by the beginning of any given year,
the probability of failure during that year is 0.29.
Find the expected benefit under this policy?
The current in a certain circuit as measured by an ammeter is a continuous random variable...
The current in a certain circuit as measured by an ammeter is a
continuous random variable X with the following density
function.
f(x) =
0.025x + 0.4
3 ≤ x ≤ 5
0
otherwise
(a)
Graph the pdf.
Verify that the total area under the density curve is indeed
1.
5
0.025x + 0.4 dx
3
=
5
3
=
2.3125 −
=
(b)
Calculate
P(X ≤ 4).
How does this probability compare to
P(X < 4)?...
Name a electrical device that can be both a conductor and insulator.
Name a electrical device that can be both a conductor and
insulator.
Ammeter: Explain how to setup a DMM to measure current in the circuit. Will it matter...
Ammeter: Explain how to setup a DMM to measure current in the
circuit. Will it matter if the ammeter (DMM used to measure
current) is before or after the resistor (on the side of the + or –
terminal)?.
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