Problem: Article: To really make money on sports betting, you have to be dedicated, so it’s a good idea to have a special account that’s only for placing bets.  When you open this account, be sure you invest enough money to cover your bankroll for an entire season or year, not just a single game.  To ensure you have enough money, multiply your base bet by at least 100, and that’s the minimum amount you should keep in this account at all times. If you're new to sports betting and don’t know your base bet, put in whatever money you have set aside for this venture and determine your base bet on the size of your bankroll (each bet should represent one to two percent). In order to place bets, you have to have an account with at least one sportsbook, though it’s ideal to have at least three, because then you can compare offerings and place smarter bets. Some sportsbooks also offer signup bonuses, so be sure to shop around. Most sportsbooks are available online these days, and some of the more popular sites include:  Bookmaker Bovada Betonline There are a number of rules that apply to this, and while some are about the numbers, others are about which teams you should and shouldn’t bet on.  For instance, while each bet should represent about one to two percent of your bankroll, you can reduce this to 0.5 percent if you aren't confident about a bet. Similarly, you can increase the bet if you're very confident, but never place a bet that exceeds four percent of your bankroll.  There are also some experts who say never to place a bet if you aren't confident, because it’s better to walk away and find a better bet that you feel good about. Many experts recommend not betting on your home team in any sport, because your bias can cloud your judgement, and this can lead to great losses. Don’t just bet on every game: every week, look at the upcoming games and pick the ones you want to bet on based on your confidence in the potential bet. Don’t be afraid to walk away from a bet right before the game. Odds change, lines change, and point spreads change, and if you're no longer confident about a bet, either don’t make it or reduce the bet. This refers to the practice of trying to recoup losses from a previous bet with more betting. It’s dangerous to do this because many people will set aside good judgement and place more bad bets in an attempt to win back what was lost, and this results in further losses. The opposite is also true: don’t chase a good bet (one where you won) with more bets in an attempt to win more or double your money. Have a betting schedule or routine and stick to it. This refers to betting with a clear mind and focus. Many people will read this and think it is common sense but you would be surprised how many people break this rule. Emotions can get the best of all of us, and bad decisions can be made from those emotions. "Going on Tilt" was a term developed when sports bettors let their emotions cloud their best resulting in losing their bankroll.
Summary: Open a specific bank account. Create accounts with a few sportsbooks. Learn to make smart bets. Create a betting schedule. Don’t chase bad bets. Bet sober.

Problem: Article: Molarity expresses the relationship between the number of moles of a solute per liters of solution, or the volume of that solution. In formula form, molarity is expressed as: molarity = moles of solute / liters of solution Example problem: What is the molarity of a solution made by dissolving 3.4 g of KMnO4 in 5.2 liters of water? Finding molarity demands that you have the number of moles and the number of liters. If you are not provided with the number of moles but you do have the volume and mass of the solution, you will need to use these two figures to calculate the number of moles before continuing on. Example problem:  Mass = 3.4 g KMnO4  Volume = 5.2 L To calculate the number of moles from the mass or grams of solute used, you must first determine the molar mass of the solute. This can be done by adding together the separate molar masses of each element found in the solution. Find the molar mass of each element using the periodic table of elements. Make sure that you count the atoms for each element and calculate the molar mass of each of the atoms. Example problem:  Molar mass of K = 39.1 g Molar mass of Mn = 54.9 g Molar mass of O = 16.0 g (The solute contains 4 O atoms, so count the 16g 4 times.) Total molar mass = K + Mn + O + O + O + O = 39.1 + 54.9 + 16 + 16 + 16 + 16 = 158.0 g Now that you have the molar mass of the solute, you need to multiply the number of grams of solute in the solution by a conversion factor of 1 mole over the formula weight (molar mass) of the solute. This will give you the number of moles of the solute for this equation.  Example problem: grams of solute * (1/molar mass of solute) = 3.4 g * (1 mol / 158 g) = 0.0215 mol The grams units of the solute and solute mass cancel each other out so you are left with mol units. Now that you have the number of moles, you can divide this value by the number of liters of solution in order to find the molarity. Example problem: molarity = moles of solute / liters of solution = 0.0215 mol / 5.2 L = 0.004134615 You should round off the number of digits after the decimal point to the place requested by your instructor. Usually, this will be two or three places after the decimal point. Additionally, when you write out the answer, abbreviate “molarity” with “M” and state the solute involved. Example problem: 0.004 M KMnO4
Summary:
Know the basic formula for calculating molarity. Examine the problem. Find the molar mass of the solute. Convert the grams into moles. Divide the number of moles by the number of liters. Write your answer.