EBDM- 5397 Quiz 4- Data Sources 3
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Question 3 10/ 10 pts The question being studied concerns Bed Bath and Beyond. One of the questions planned for data collection efforts is, "Do you agree that Bed Bath and Beyond close more brick-and-mortar stores and begin investing in distribution centers and online marketing strategies?" The question is double barrelled. The question is leading.
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Related Questions
purses/58591/days/1492616/assessments/623504/variants/623504/take/25/
Question 24
Which is the best description of the regulation goals set forth by the Kyoto protocol of
1997?
A
a suggestion to car manufacturers to develop less-polluting vehicles
a mandate for industries to use air pollution control devices, such as scrubbers and
electrostatic precipitators
a goal set to decrease the carbon dioxide (CO2) emissions from anthropogenic activity,
with a focus on stopping the rise of global temperature
a goal and promise to make efforts to reduce greenhouse gas emissions
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Appendix A – Commercially available analgesics.
-
No:
Commercial
Aspirin
Caffeine
Acetaminophen Ibuprofen
name
Bayer Aspirin
Generic Aspirin
1
2
3
Excedrin
X
4
Anacin
No-doz
Tylenol
6
7
Motrin
Table 1: Complete this table
Distance travelled
Known
Rf Value
(ст)
Solvent
5.2
Aspirin
3.0
Acetaminophen
1.8
Caffeine
0.40
Ibuprofen
3.5
Calculate Rf value for all above compounds. Write formula and show all calculations.
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Dipping into health
When blood pressure is measured over a 24-hour period, this is referred to as ambulatory blood
pressure monitoring, three patterns arise. Here are samples of three different individual.
Let's call them Dick (1), Tom (2) and Harry (3).
1
2
3
Patient's
Paticnt's
BP
BP
Palicet's
Upper
limit
Upper
limit
12
Upper
lim
124
120
Lower
limit
Lower
Lower
limit
Time (houn after wakening)
Time (hours after awakening)
Time (hours after awakenin
SYSTOLIC BP (mm Hg)
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1-38. To entertain children between the ages of 2 and 90, I enjoy
popping corks from bottles containing vinegar and baking soda
pour about 50 mL of vinegar into a 500-mL plastic bottle. Then I
wrap about 5 g of baking soda (which is sodium bicarbonate,
NaHCO3) in one layer of tissue and drop the tissue into the bottle
I place a cork tightly in the mouth of the bottle and step back. The
chemical reaction generates CO2(g) that pressurizes the bottle and
eventually bursts the cork into the air. Everyone smiles.
I
CH2CO2HNaHCO3 >CH2CO2 + Na + CO2(g) H2O
Acetic acid
Sodium bicarbonate
in vinegar
in baking soda
(a) Find the formula mass of acetic acid and of sodium bicarbonate
(b) How many grams of acetic acid are required to react with 5 g of
NaHCO3?
(c) Vinegar contains ~5 wt% acetic acid. How many grams of vinegar
are required to react with 5 g of NaHCO3? The density of vinegar is
close to 1.0 g/mL. How many mL of vinegar are required to react
with 5 g of NaHCO3?
(d) Which is the limiting…
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(a) Is it true that 26.3 mpg gasoline translates to 319 g CO:/mi?
i. Convert mpg (miles per gallon) to miles per kg (of gasoline) using the density of gasoline
ii. Convert kg of gasoline to kg of C assuming the overall formula for gasoline is CıH1a5
ii. Convert kg of C to kg of CO2
iv.
Now finally compute g CO:/mi corresponding to 26.3 mpg and compare to 319 g CO2/mi
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Concentration (mg/ml)
Time (min)
8.5
0.5
6.8
5.4
1.5
4.0
2
3.2
2.5
2.5
3
What will be the slope of the line using the given first and second values?
What will be the y-intercept, still using the given first and second values?
Completely state the equation of the line.
nlcot olN5
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Dr. TS You found lead in blood collected from children living within 5 km from the Ship
Channel. Calculate weighted average lead concentration (mg/L) in their blood.
Age group (n)
Average lead
concentration
(1ug/dL)
25
1-2 years (30)
3-4 years (50)
5-6 years (50)
7-8 years (40)
9-10 years (60)
30
35
40
40
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A 95.0 wt% solution of ethanol (CH3CH2OH, FM 46.07) in water has a density of 0.804 g/mL. (a) Find the mass of 1.00 L of this solution and the grams ofethanol per liter. (b) What is the molar concentration of ethanol in this solution?
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How many moles of NaOCI would be present in 1 gallon of commercial bleach (density =
1.05 g/ml), which is 6.25% mass percent active ingredient. (1 L = 1.057 qt.)
2)
%3D
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Current Attempt in Progress
From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copper
at the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activation
energy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate the
length of time required for 50% recrystallization at room temperature, 20°C (293 K).
(a) i
kJ/mol
(b) i
days
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13) 16.0 grams of a certain food contain 130 calories. How many grams of this food would you need in order to
consume 2150 calories?
14) The speed of sound in air is about 343 m/s. What is this speed in miles per hour?
15) If the gas in England costs £2.99/1, what is the cost in $/gal? (assume E1.00 = $1.50)
16) Calculate the density of mercury (13.6 g/cm) in units of kg/m³.
17) The daily dose of antibiotic for the treatment of an ear infection is 115 mg/kg of body weight. If the
antibiotic tablets are available in 250. mg size, calculate the number of tablets that a 33.5 lb. child must take
per day.
1 1
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SCIENCE_Q1_MODULE_5_quantity-really-matters_FINALO.
6. What is the percent by volume of isopropanol in a 90ml solution that contains
25ml isopropanol?
a. 26.8 % isopropanol
b. 26.9 % isopropanol
c. 27.8 % isopropanol
d. 27.9 % isopropanol
co a1_Science7_Modules
7. What is the volume of a 20% methyl solution that contains 15mL of methyl?
a. 6 ml of methyl
b. 4 mL of methyl
c. 5 ml of methyl
d. 3mL of methyl
с.
8. What is the percent by mass concentration of a solution that contains 30.0g
of sugar dissolved in 150g of water?
a. 16.5%
b. 16.7%
c. 17.6 %
d. 17.7%
9. A genuine sterling silver items is 92.5% silver by mass. This means that:
a. 92.5 g is silver and 7.5g is another metal (usually copper)
b. 0.5 g is silver and 92.5g is another metal (usually copper)
c. 46.25g is silver and 46.25g is another metal (usually copper)
d. 92.5g of the jewelry is made up of pure silver
10.The following are quantitative descriptions of concentrations, EXCEPT:
a. percent by mass
b. polarity
c. dilute…
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101 Chem101
b Search results for 'What is the mc X
B Brainly.com - For students. By stu x
G What is the molecularity of step
+
->
A app.101edu.co
I Apps
b bartleby
B Brainly.com - For st. = Google Docs M gmail
6 eagle adv
O school email
m Monthly | My Classes
101 Chem101
E Reading list
email
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general
Question 37 of 44
Submit
What is the molecularity of step 1 in the proposed mechanism?
A) unimolecular
Step 1 CI + O3 → CIO + O2
B) bimolecular
C) termolecular
Step 2 CIO + O3 → CI + 202
D) Cannot be determined from given
mechanism
4:50 PM
P Type here to search
82°F AQI 51
7/21/2021
近
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A two-year-old, 15 kg child is found with an open container of hand sanitizer. The product
contains 80% ethanol (63.2 g/100 mL). Assuming the triage blood level that would prompt
emergency department referral is 50 mg/dL, and the ethanol is 100% absorbed, how much
hand sanitizer would this child need to ingest to require referral?
Estimated blood level = (dose/15 kg) * (0.6 L/kg)
Select one:
O a. 14 mL
O
b. 7.1 mL
O
c. 71 ml
Od. 142 mL
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Select A if statement A is trueSelect B if statement B is true Select C if both statement A and B are trueSelect D if neither statement A nor B are true
1. Fertilizer X is a complete fertilizer with a fertilizer grade of 25-25-25, it is the only fertilizer material needed to satisfy a recommendation of 120-50-60 kg/ha; (b) Fertilizer X (25-25-25), Fertilizer Y (0-0-62) and fertilizer z (0-50-0) are the fertilizer materials needed to satisfy a recommendation of 120-50-60 kg/ha.
2. (a) a recommendation of 80-80-80 kg/ha is satisfied with 53 kg of fertilizer X (15-15-15)/ha; (b) the same recommendation (80-80-80) is satisfied by applying 0.4 g of fertilizer X to a 15 kg soil in a clay pot.
3. (a) Lower fertilizer analysis implies higher amounts of the fertilizer material needed to be applied to satisfy a recommendation. (b) Fertilizer analysis or grade is expressed as %N-%P-%K, and is usually printed on the fertilizer container/sack/pack
4. (a) Under acidic conditions, all of the plant…
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1) Listen
-5
The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10 and a professor made 1825
mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured
in a 0.125 M solution of calcium phosphate [Cag(PO4)2] solution. You may ignore
the additional volume coming from the Ca3(PO4)2 solution to make the calculation
simpler. Calculate the new sulfate (SO42) ion concentration at equilibrium with this
common ion effect.
6.40 x 10-5
5.25 x 10-5
6.21 x 10-5
5.44 x 10-5
201591..docx
LAB EXP. #3 -..docx
Show All
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Answer questions 1 and 2 according to the data given.
Dater Weight of cream i: 326 kỳ. Table shows some data
obtained directly from Lactascan instrument.
Fat % SNF % Lacto-
density
27.32
30.23
Raw milk 4.15 7.97
Skim milk 0.08 8.26
Q1. Calculate fat percent of creamn
A) 46 B) 28 (C) 3D D) 0.046
آدرما 396
100 x
Q2. Calculate efficiency of the cream separator.
A) 100%
B98%
C) 97%
D) 96%
E) 87.2%
amount
2500 L
E) 0.28
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The active ingredient of Benadryl© Chesty Forte Cough Liquid is Guaiphenesin an expectorant drug used to assist the expectoration ('bringing up') of phlegm from the airways in acute respiratory tract infections. A 200.0 mL bottle of Benadryl© Chesty Forte Cough contains 4.00 g of Guaiphenesin (C10H14O4).
If the recommended dose for a child is 150 mg of Guaiphenesin. What volume of the cough liquid should be administered?
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Consider the following data:
HX
→ X- + H+
Ką = 6.61 · 10- 5
H2A +
НА + Н +
Ka = 2.68 · 10-7
Calculate the Keg for the following reaction:
H2A + X¯ + HA¯ +HX
Record your answer in scientific notation to 3 sig figs.
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1.
(answer the questions in the tan boxes in the tables below each question)
A student conducted an investigation to determine the effect of water temperature on
the amount of sugar that dissolves in a beaker of water. Identify components for trial 1
of this investigation.
Beaker
Number
1
2
3
4
Amount of
Water (mL)
100
100
100
100
Amount of Water (mL)
Trial 1
Temperature of Temperature of Amount of Sugar
Sugar (°C) Water (°C)
Dissolved (g)
20
20
20
20
Temperature of Sugar
5
10
15
20
185
189
194
204
Temperature of Water
Terms
Variable
Constant
Amount of Sugar Dissolved
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Use the following ABG Normal Values for the following question.
HCO3 = 22 to 26 mEq/L
PaCO₂ - 35 to 45 mm Hg
PaO₂80 to 100 mmHg
SaO, = 95% to 100%
Clinical Case Problem: A 60-year-old Male Resuscitated in the Cardiac Care Unit
A 60-year-old male, admitted to the Cardiac Care Unit for chest pain, suddenly becomes
unresponsive in cardiac arrest. He is resuscitated after a 20-minute code. His ABG values on
100% O₂ are pH, 7.28; PaO2, 211; SaO2, 100%; PaCO2, 35; and HCO3, 14 mEq/L. Which
process is disturbing the acid-base balance?
O metabolic alkalosis
O respiratory acidosis
none of the choices is correct.
O respiratory alkalosis
metabolic acidosis
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3. Corev was synthesizing a chemical in the laboratory. He used different
purification techniques to try to obtain a pure compound. The melting point of the
pure compound is 65 degrees. When he tested his compound in the lab the
melting point he obtained was 62-68 degrees. Is the product he synthesized pure?
4A company was low on copper metal and decided to use some chemical
additives just this once to some copper wiring they were installing in a house. How
will this impact the conductivity of the wiring?
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Two different laboratories within a company further studied the morantel recovery percentage
in shrimp when spiking with 10 ug/kg. The results from both labs are presented below.
Shrimp Sample
Laboratory 1 (ug/kg)
Laboratory 2 (ug/kg)
108.82
113.36
2
101.59
107.47
3
102.17
109.01
a. A 4th shrimp sample was analyzed for morantel recovery percentage using laboratory 1.
The result was 99.4%, can any of the data be thrown out using the Q and/or Tn test
using the 95th percentile?
b. Is there a statistical difference (90th percentile) between the two laboratories results in
the study?
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During a routine check of the fluoride content of Gotham City's water supply, the given results were obtained from replicate
analyses of a single sample: 0.815 mg/L, 0.789 mg/L, 0.811 mg/L, 0.789 mg/L, and 0.815 mg/L.
Determine the mean and 90% confidence interval for the average fluoride concentration in this sample. Report the mean and the
confidence interval using the "real rules" for significant figures.
mean: 0.804
90% confidence interval:
2.32 x10-4
Incorrect
mg/L
mg/L
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A new method for glucose determination in serum (Method A) is to be
compared to the established method (Method B). The table below
shows the measured glucose concentration by each method for each
patient. Is there a difference in the two methods at the 95%
confidence interval?
Patient1 Patient2 Patient3 Patient4
MethodA(mg/L) 1044
MethodB(mg/L) 1028
720
711
845
820
800
795
Patient5
957
935
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Posttest
Direction. Read the questions carefully. Write the letter of the correct answer.
1. Water exists in three states of matter and continuously moving through a cycle
on Earth. At which stage in the water cycle does water transform from a gas to a
liquid?
a.evaporation
c. precipitation
b. condensation
d. Sublimation
2.
Carbon dioxide (CO2) forms when coal burns in the presence of oxygen. Which
of the following is the BEST evidence that a chemical reaction occurs when the coal
burns?
a. Production of mechanical energy c. A new substance is produced
b. Production of electricity
d. Formation of precipitate
3.Which of these does NOT happen during a chemical change?
a. New substances are formed with different chemical properties.
b. Attractive force between atoms of molecule formed or break.
c. The chemical properties of the substances before and after the reaction are
the same
d. Energy is always released or absorbed.
4. A granular substance is added to a liquid. Which of the…
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NaOH Concentration (M): 0.09669M
Trial 1:
Inital Volume of NaOH: 0.55mL
Final Volume of NaOH: 28.25 mL
Trail 2:
Intial Volume of NaOH: 18.1 mL
Final Volume of NaOH: 46.1 mL
Concentration of HCl Solution
Subtract the initial buret reading from the end point reading. Convert the readings to liters by dividing by 1000.
Solve this equation for the concentration of HCl:
(CHCl) (0.01000 liters ) = (CNaOH) (volume of NaOH in liters).
CNaOH is the normality of the NaOH you recorded from the bottle.
Average the two HCl concentrations.
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The active ingredient of Benadryl© Chesty Forte Cough Liquid is Guaiphenesin anexpectorant drug used to assist the expectoration ('bringing up') of phlegm from theairways in acute respiratory tract infections. A 200.0 mL bottle of Benadryl© ChestyForte Cough contains 4.00 g of Guaiphenesin (C10H14O4).
i. If the recommended dose for a child is 150 mg of Guaiphenesin. What volume of thecough liquid should be administered?
arrow_forward
The active ingredient of Benadryl© Chesty Forte Cough Liquid is Guaiphenesin anexpectorant drug used to assist the expectoration ('bringing up') of phlegm from theairways in acute respiratory tract infections. A 200.0 mL bottle of Benadryl© ChestyForte Cough contains 4.00 g of Guaiphenesin (C10H14O4).
i. If the recommended dose for a child is 150 mg of Guaiphenesin. What volume of thecough liquid should be administered?
ii. If the recommended dose for an adult is 350 mg of Guaiphenesin. How many molesof Guaiphenesin does this equal? (answer to 2 significant figures)
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