Lv 611,065 points

niuchemist

Favorite Answers45%
Answers1,357

I'm a B.S. chemistry graduate from Northern Illinois University. I am currently a chemist in the chicagoland area working in the surfactant industry.

  • Math - Gold Plating on a Coin?

    I ve been working at this, but I can t seem to get it. I find the area of the circle, multiply it by two to get the surface area of the head and tails of the coin. I find the circumference and multiply by the thickness to find the area of the sides. I add both quantities together and multiply by the thickness of the gold plating (0.201 microns). Then I convert to cubic centimeters and multiply by the density of gold. What am I doing wrong?

    Collectible coins are sometimes plated with gold to enhance their beauty and value. Consider a commemorative quarter-dollar advertised for sale at $4.98. It has a diameter of 24.3 mm, a thickness of 1.78 mm, and is completely covered with a layer of pure gold 0.201 µm thick. The volume of the plating is equal to the thickness of the layer multiplied by the area to which it is applied. The patterns on the faces of the coin and the grooves on its edge have a negligible effect on its area. Assume the price of gold is $12.6 per gram.

    2 AnswersMathematics5 years ago
  • Fruit of the Poisonous Tree?

    A police officer, acting solely on a hunch, kicks down the door and discovers a kidnapped person. According to the exclusionary rule, evidence obtained as the result of an illegal search are inadmissible in court (so called Fruit of the Poisonous Tree). In such a scenario, would the victim's testimony be inadmissible due to the exclusionary rule?

    7 AnswersLaw & Ethics8 years ago
  • How does Staples make money on rebates?

    Staples offers rebates for free or very low priced (e.g. $1) reams of paper. How does Staples make any money on these deals? Aren't they bleeding money by, essentially, giving away paper like this?

  • Plain Clothes Officer Search?

    Suppose my neighbor is a police officer and I, unknowingly, invite him over. While in my house he discovers stolen property. Now suppose he seizes the stolen goods and arrests me for possession of stolen property.

    Would the evidence be allowed under plain view doctrine or disallowed as Fruit of the Poisonous Tree? I'm curious.

    3 AnswersLaw Enforcement & Police9 years ago
  • Should I bump a coworker?

    I work second shift at a company and my coworker, with less seniority, works first shift. Due to production and how we do things, I usually get a disproportionate share of the work. Also, with no other way to say this, he works painfully slow and I have to pick up the slack to get things done. Management knows about this, but they either choose to do nothing or can do nothing.

    Working second shift has been detrimental to my social life. The only fun I feel I have in life is on the weekends because I usually end up going to be late and rising right before work. I can never establish a regular bedtime because I can never know on what day I will have to work late (My shift is 2-10 pm but often becomes 2-12 and even 2-2 am. My coworker is 6am - 2 pm, and he can choose to leave at 2 on the dot or stay 'till 4).

    I asked him to switch but he says he can't because he has a kid... I hate to cause him problems ... you live life trying not to screw over others.

    That being said, something has to change with my working environment. The shift

    structure cannot change because the company is small and it's how they do things.

    So, in this place, would you: a) bump him to second shift b) stay in second shift or c) find another job?

    1 AnswerOther - Society & Culture9 years ago
  • Replying in Spanish to Como Estas?

    When someone asks me "Como estas?" my inclination is to answer back with the adjective that I'm feeling.

    In English, the conversation might be:

    "How are you?"

    [I am] great. And [how are] you?"

    With the brackets indicating implied language.

    I've noticed in speaking spanish that you cannot answer with just the adjective. You must say "Estoy ..." or you are not understood.

    Is this correct, from your own experience? Does spoken Spanish not allow for the omission of Estar?

    7 AnswersLanguages9 years ago
  • Speedway vs Shell/BP Gasoline?

    I have heard from family that the gasoline sold at Speedway is somehow inferior to the gasoline sold at Shell/BP or other more reputable branded gas stations. However, I've also heard that gasoline is interchangable and that one tanker truck can end up refueling several different stations with the same gas.

    What is your opinion on this?

  • How to get ammo in nacht der untoten?

    In Call of Duty on XBOX live (in nacht der untoten), you use the mystery box and can get various heavy machine guns and the ray guns. Between rounds, they invariably run low on ammo. Is there a place in the level to replenish ammo for weapons you already have?

    The mystery box might not give me the same guns quickly and between rounds you're lucky to have enough time to check it once.

    1 AnswerVideo & Online Games1 decade ago
  • English Grammar - We vs Us?

    In the following sentence, is we or us correct?

    "John and I ran to the lake leaving Tom, who was much slower than us/we, behind."

    My reading says that predicate nominatives require the subject case of the pronoun. However "we" doesn't sound right.

    11 AnswersLanguages1 decade ago
  • Suggestions for a good musical?

    My favorite musical is Les Miserables. I was wondering if anyone who enjoyed Les Mis could suggest musicals they also enjoy.

    3 AnswersPerforming Arts1 decade ago
  • Practical Laboratory Question - Removing Cork from a volumetric flask?

    So, suffice it to say, I accidentally pushed a small cork stopper into a 200 mL volumetric flask. The cork is the size of the neck of the flask, so removing it is proving quite difficult. I was wondering if anyone had ever dealt with this problem in the past, and if any particular technique was best in retrieving the cork from the flask without breaking the flask. (destroying the cork is ok, if necessary).

    2 AnswersChemistry1 decade ago
  • Aerial Combat for the xbox?

    Can anyone recommend good games for airplane or helicopter combat on the xbox? I'm referring to the original xbox, not the 360.

    1 AnswerVideo & Online Games1 decade ago
  • What is a "check receiver"?

    Football commentators have recently started commenting on how quarterbacks go to the "check receiver" or how, for instance, Brett Favre tries to make plays work on the fly instead of going to the check receiver. What is a check receiver, exactly? (I have a general idea, but I feel like I have an incomplete understanding of the strategy)

    3 AnswersFootball (American)1 decade ago
  • Car Vandalized - Should I file a claim?

    So my 98 Pontiac Bonneville was attacked by a vandal a few days ago. The left side passenger door is dented and the door won't open anymore. They also knocked the driver's side mirror off, but I was able to glue it back on. Now, I have collision on the car with a $500 deductible. The damage is probably in excess of $500 dollars, although I won't know for sure until I get an actual estimate. I'm wondering if it's worth it to spend the 500 dollars fixing the car. I'm never going to sell it and the car still drives with no problem. What do you think?

    5 AnswersInsurance & Registration1 decade ago
  • Evaluating Internet Speeds?

    I'm looking to subscribe to a high speed internet service and they give the following options, in terms of speeds:

    HSI 4Meg/256K

    HSI 9 Meg/512k

    HSI 16Meg/1Meg

    When 2 speeds are listed like this, how do you evaluate the overall internet speed? For instance, would the 4 Meg/256 K connection be 4 Mb/s or 256K/s?

    2 AnswersComputer Networking1 decade ago
  • Lazerfest 2008 in Des Moines, IA?

    Lazer 103.3, the alternative rock radio station for the Des Moines area, has begun advertising the Lazerfest 2008 concert this spring. Has anyone taken a look at the list of bands that will be attending? Do you plan to attend yourself?

    1 AnswerRock and Pop1 decade ago
  • Who to start for RB? Adrian Peterson or Chester Taylor?

    I'm trying to decide who to start against the Bears next week. I want to start one of them because the Vikings have an excellent run offense and the Bears defense has struggled this year. I don't know whether to go with Adrian Peterson or Chester Taylor. Any thoughts? In other weeks, the choice has been obvious but with Peterson getting hardly any yardage against the 49ers, now I have doubts.

    13 AnswersFantasy Sports1 decade ago
  • Logitech Keyboard Mistypes Certain Keys?

    The logitech keyboard that I bought last week has started including a "6" when I type "n" and a 5 when I type "B". Has anyone experienced a similiar issue with these keyboards in the past? It's a Logitech Cordless Ex110

    3 AnswersOther - Hardware1 decade ago
  • Grand Theft Auto San Andreas Jumpjet PC?

    On GTA SA, there is a code to use a fighter jet. The fighter jet fires missiles and it also drops something with one of the controls. It's not a bomb, because it doesn't explode when it hits the ground.

    What is it that is dropped by the plane?

    2 AnswersVideo & Online Games1 decade ago
  • Hand Held Vacuum for Cleaning Car?

    Can anyone recommend a good hand held vacuum to use to clean out a car? I need something that doesn't need to be plugged in, because the electrical outlet in my apartment garage is inaccessible.

    4 AnswersCleaning & Laundry1 decade ago