11/26/21

Which of the following changes will increase the voltage of the cell Al(s)|Al3+(aq, 1.00 M )||Cu2+(aq,1.00 M)|Cu(s)?
I. Increasing the surface area of the Al electrodeII. Decreasing the concentration of Al3+(aq) to 0.001 MIII. Decreasing the concentration of Cu2+(aq) to 0.001 M
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11/26/21

What is the half-life of iodine-133?
The number of disintegrations per minute (dsm) of a sample of iodine-133 is measured at 5.5 x 102 dsm. When the sample is measured 295 minutes later, the number of disintegrations has decreased to... more
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11/26/21

Balance the following equation in basic solution using the lowest possible integers and give the coefficient of water. PbO(s) + NH3(aq) → N2(g) + Pb(s)
I'm having trouble understanding these type of problems, is there a simple way to approach or solve this?
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11/26/21

When the reaction MnO2(s) <=> Mn2+(aq) + MnO4-(aq) is balanced in acidic solution, what is the coefficient of H+?
I'm having trouble understanding how to solve these type of problems, is there a simple way to solve this?
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11/26/21

What will happen to the ratio of partial pressure of PCl5 to partial pressure of Cl2 as the temperature is raised?
Consider the following system at equilibrium at 25°C: PCl3(g) + Cl2(g) <=> PCl5(g) for which ∆G° = -92.50 kJ. The answer is decreases, but I would like to know why?
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11/26/21

What would be the daily dose for a newborn weighing 5.6 lb?
If the dose of gentamicin for premature and full-term neonates is 2.5 mg/kg administered every 12 hours.
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11/26/21

How to calculate the dose for a patient measuring 73 inches in height and weighing 190 lb?
If the drug cabazitaxel is used to treat prostate cancer in doses of 25 mg/m2.
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11/26/21

How to calculate the dose on each basis for a patient weighing 150 lb and measuring 5 feet 8 inches in height?
If the daily dose of a drug is given in the literature as 8 mg/kg of body weight or 350 mg/m2.
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11/26/21

How many capsules, each containing 250 mg of clarithromycin, are needed to provide 50 mg/kg/day for 10 days for a person weighing 176 lb?
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11/26/21

A physician desires a dose of 10 mcg/kg of digoxin for an 8-lb newborn child. How many milliliters of an injection containing 0.25 mg of digoxin per milliliter should be given?
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11/26/21

How to calculate the number of tablets to dispense to a patient weighing 147 lb?
Fluconazole tabs 100 mgDisp. tabs Sig: tab ii stat, then 3 mg/kg b.i.d. × 7 days thereafter
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11/26/21

Which of the following is a valid set of quantum numbers?
Which of the following is a valid set of quantum numbers?a. {4, 1, -1, -1⁄2}b. {3, 1, -2, +1⁄2}c. {1, 0, -1, +1⁄2}d. {5, 2, 0, -1}
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11/25/21

In a titration of 42.0 mL of a 0.500 M solution of a diprotic acid H₂C₃H₂O₄ (malonic acid) with 0.255 M NaOH, how many grams of NaOH are required to reach the second equivalence point?

In a titration of 42.0 mL of a 0.500 M solution of a diprotic acid H₂C₃H₂O₄ (malonic acid) with 0.255 M NaOH, how many grams of NaOH are required to reach the second equivalence point?
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11/25/21

GIVE THE SPECIFIC SET OF QUANTUM NUMBERS [n, ℓ, mℓ,ms] OF THE FOLLOWING
GIVE THE SPECIFIC SET OF QUANTUM NUMBERS {n, ℓ, mℓ,ms} OF THE FOLLOWING: Na Al Ca Cu Au
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11/25/21

C8H18+O2=O2+H2O Stoichiometry
C8H18+O2=O2+H2O a. A liter of gasoline has a mass of about 702 g. What mass of carbon dioxide is produced when 2 liters of gasoline burns? b. How many moles of water will be produced from 1 mole... more
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11/25/21

Calculate E°(cell) for the reaction, 10 Fe3+(aq) + I2(aq) <=> 2 IO3-(aq) + 10 Fe2+(aq) given the reduction potentials:
Fe3+(aq) + e- <=> Fe2+(aq) , E° = 0.77 V2 IO3-(aq) + 10 e- <=> I2(aq), E° = 1.10 Vanswer: -0.33 VLooking for an explanation on how to work this problem because I thought 1.10 V... more
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11/25/21

How many tsp should be taken by the patient for each dose?
If three bottles of a 60 ml liquid medicine are to be taken every 6 hours for 4 days.
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11/25/21

How many tablets will the patient take for each dose?
If the patient bought 60 tablets of a maintenance medication to be taken BID for 15 days.
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11/25/21

Draw the Lewis structures for three resonance forms of the nitrate ion, NO−3 . Include electron lone pairs, and any formal charges.
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11/25/21

Which of the molecules and polyatomic ions cannot be adequately described using a single Lewis structure? CO2−3 NH+4 CH2Cl2 OF2 HCN O3
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11/25/21

Use the molar bond enthalpy data in the table to estimate the value of Δ𝐻∘rxn for the equation CH4(g)+4Cl2(g)⟶CCl4(g)+4HCl(g)
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11/24/21

The usual dose of a drug is 25 mg/m2, calculate the dose;(in mg)
for a patient weighing 70 kg and measuring 1.95 m.DOSE BASED ON BODY SURFACE AREA (BSA)Formula to use: Mosteller Formula/the Nomogram for determination of BSA from Height and Weight
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11/24/21

What is the usual dose of a drug is 5 grains? Solve for the safe dose for…(express your answer in mg) a 5 year old child

Applying:a) use Young’s Ruleb) use Cowling’s Rule
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11/24/21

Help with Chem question
The combustion of methane has ΔHocomb = 890 kJ/mol. How many grams of molecular oxygen are equivalent to 1000kJ of heat released from this reaction?Select one:a. 35.9 gb. 32.0 gc. 72.0 gd. 100.0 g
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11/24/21

Chem Question Enthalpy
What is the ΔHorxn for the production of propane, C3H8, given the following reaction enthalpies:ΔHo(combustion of propane) = –2219.9 kJΔHo f CO2(g)= –393.5 kJΔHo f H2O(l)= –285.8 kJSelect one:a.... more
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