Question
In: Chemistry
A sample is known to contain 3.72 x 1022 molecules of nitrogen dioxide (NO2). a) Determine...
- A sample is known to contain 3.72 x 1022 molecules of nitrogen dioxide (NO2).
a) Determine the number of moles of nitrogen dioxide molecules in the sample.
b)Determine the molar mass of nitrogen dioxide.
c) Determine the mass (g) of the sample of nitrogen dioxide.
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
Nitrogen dioxide (NO2) is toxic by inhalation. A scientist claims that the population mean nitrogen dioxide...
Nitrogen dioxide (NO2) is toxic by inhalation. A scientist
claims that the population mean nitrogen dioxide level in West
London is higher than 30 parts per billion and collects the NO2
levels for 36 randomly selected days. The results show an average
of 32.86 and the standard deviation of 12.72 parts per billion.
Historical data show that the nitrogen dioxide levels follow a
normal distribution with a standard deviation of 12 parts per
billion.
(a) (3 pts) Construct a 95%...
1) Determine the number of moles of Br2 in a sample consisting of: 8.02×1022 Br2 molecules...
1) Determine the number of moles of Br2 in a sample consisting
of:
8.02×1022 Br2 molecules
2.23×1024 Br atoms
11.0 kg bromine
Determine the mass percent H in the hydrocarbon isopentane,
CH3CH(CH3)CH2CH3?
Determine the empirical formula of:
benzo[a]pyrene, a suspected carcinogen found in
cigarette smoke, consisting of 95.21% C and 4.79% H, by mass
hexachlorophene, used in germicidal soaps, which consists of
38.37% C, 1.49% H, 52.28% Cl, and 7.86% O by mass.
The element X forms the compound XOCl2containing...
Silcon dioxide (SiO2) has a molecular density of 2.3 x 1022 molecules/cm3. So for, silicon nitride,...
Silcon dioxide (SiO2) has a molecular density of 2.3
x 1022 molecules/cm3. So for, silicon
nitride, what is it's molecular density in terms of
molecules/cm3?
A 2.00 mol sample of nitrogen dioxide was placed in a 40.0 L vessel. Nitrogen dioxide...
A 2.00 mol sample of nitrogen dioxide was placed in a 40.0 L
vessel. Nitrogen dioxide decomposes according to the equation At a
certain temperature, the nitrogen dioxide was 8.6%; that is, for
each mol of NO2 before the reaction, (1.000 – 8.6×10-2) mol NO2
remains after dissociation. Calculate the value of KC for this
reaction.
In a study of nitrogen dioxide (NO2) pollution within vehicles, three models of cars were driven...
In a study of nitrogen dioxide (NO2) pollution within
vehicles, three models of cars were driven for 1 hr in a town area
(A) and an adjacent country area (B). Triethanolamine disc was
installed in each car to record the mean nitrogen dioxide
concentration over the 1 hr period.
Vehicle model
Nitrogen dioxide (ppb)
Area A
Area B
1
17.4
12.3
1
11.8
18.2
1
12.5
19.0
2
32.3
21.8
2
38.1
41.0
2
34.2
38.6
3
21.6
16.4
3...
Nitric acid (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark brown gas:...
Nitric acid (NO) reacts with oxygen gas to form nitrogen
dioxide (NO2), a dark brown gas:
2NO(g) + O2(g) →
2NO2(g)
In one experiment 0.886 mole of NO is mixed with 0.503 mol of
O2.
Calculate which of the two reactants is the limiting reagent.
(5 points)
Calculate also the number of moles of NO2 produced.
(5 points)
What reactant is left over and how much of it is left over?
Calculate the mass (in g) of each sample. 6.31×1020 SO3 molecules 2.4×1022 H2O molecules 4.6×1025 O3 molecules...
Calculate the mass (in g) of each sample.
6.31×1020 SO3 molecules
2.4×1022 H2O molecules
4.6×1025 O3 molecules
9.85×1019 CCl2F2 molecules
Food package method that uses nitrogen dioxide is known as __________________ Eggs properties are well represented...
Food package method that uses nitrogen dioxide is known as
__________________
Eggs properties are
well represented in the _____________________
A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.0500% carbon dioxide, and 0.930% argon by...
A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.0500%
carbon dioxide, and 0.930% argon by volume. How many molecules of
each gas are present in 4.65 L of the sample at 49°C and 4.97 atm?
Enter your answers in scientific notation.
A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.0500% carbon dioxide, and 0.930% argon by...
A sample of air contains 78.08% nitrogen, 20.94% oxygen, 0.0500%
carbon dioxide, and 0.930% argon by volume. How many molecules of
each gas are present in 6.62 L of the sample at 38°C and 2.21 atm?
Enter your answers in scientific notation.
× 10 molecules N2
× 10 molecules O2
× 10 molecules CO2
× 10 molecules Ar
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Do you agree that Social Loafing is similar to Theory X. Give an example to support...
- Computing Cost of Goods Sold and Ending Inventory. Bartov Corporation reports the following beginning inventory and...
- SQL FORMAT (11-13 are completed and correct) -- 11. what are the names of all students...
- You have been hired as a capital budgeting analyst by Advent Sports, a sporting goods firm...
- DESCRIBE WHAT HAPPENS WHEN WE BECOME CONSCIOUS OF SOMETHING. WHAT HAS TO HAPPEN FOR CONSCIOUS AWARENESS...
- 3) You are rolling a 12 sided die 8 times. a) What is the size for...
- explain the difference between quantitative and qualitative research strategies. Provide an example of a crime based...
ADVERTISEMENT