How long will it take 10.0 ml of Ne gas to effuse through
aporous barrier if it has been observed that 125 mins are required
for 10.0 ml of AR gas to effuse through the same barrier?
The half-life of caffeine in the human body averages 5 hours.
How long would it take a person who has had 8 cups of coffee to
recover completely from caffeine overdose, and appear to only have
had one cup of coffee? Show your work.
How long will it take monthly payments of $600 to repay a
$65,000 loan if the interest rate on the loan is 9.5% compounded
semiannually? How much will the time to repay the loan be reduced
if the payments are $50 more per month?
A current of 5.42 A is passed through a Ni(NO3)2 solution. How
long (in hours) would this current have to be applied to plate out
5.00 g of nickel? (Please show all steps)
1. Order – 500 mL Normal Saline at 60 mL/hour. How long will it
take for the infusion to complete?_________________________ If the
IV is started on Monday at 2000, when will it be complete (day of
week; military time)?_________________________
2. Order – Gentamicin 50 mg IVPB every 8 hours for a child
weighing 40 pounds
Recommended dosage – 6 – 7 mg/kg/day in divided doses every 8
hours
Is this dose safe? Why or why not?
Answer:
____________________________________________________________
3. Order...
How many mL of 1.20M HCL would it take to just exhaust 100.mL of
a buffer that is 0.300M in HCO3^- and 0.200M in CO3^2-? a) Write
the balanced net ionic reaction that occurs when HCl is added?
A certain first order reaction has a half-life of 0.35 hours.
How long will it take for 12.5 % of the reactant to react?
For a certain first order reaction, it was found that after 35
seconds; only 15 % of the reactants had reacted. What is the
numerical value of the rate constant?
A certain first-order reaction has a half-life of 25 seconds.
What percentage of the reactant will remain after 125 seconds?
A certain first-order reaction has a...
1) a) How would you make 600 ml of a 0.25 M ammonia and 0.20 M
ammonium nitrate from a bottle of 6.0 M ammonia (aq) and a bottle
of solid ammonium nitrate.
grams of ammonium nitrate?
mL of ammonia?
mL of H2O?
b) Calculate pH (Kb = 1.8 x 10^-5)
2) How many mL of Acid (12 M HCl) or base (12 M NaOH) would you
need to shift the pH 0.5 increments down?