You have just returned from a twenty five mile jog around the track at the Student Recreational center. As sweat drips from your chin, you contemplate the concept of fluid replacement, but can't find a bottle of Gatorade in your frig. Instead, you find a carton of your favorite orange juice and pour yourself a large glass (360 mL) of this beverage. An 8 oz (1 fluid oz=29.57 mL) serving of orange juice contains 16 g of sugar, 468 mg of potassium, 426 mg of chloride and 0mg of sodium. What is the osmolarity of this orange juice?

Determine how long will the cylinder last : An emphysema patient is breathing pure O2 through a face mask. how long will the cylinder last |

Explain the solubility of lead sulfate in parts : At 25C, the molar solubility of lead sulfate is 1.4*10^-4 molarity. The solubility in g/L is 4.24*10^-2. 23.6 L of water are required to dissolve 1g of lead sulfate. What is the solubility of lead sulfate in parts per million |

Explain freeze water to make eight pounds of ice : Assuming that his cooler will hold 24 cans and 8 pounds of ice. How much salt does he need to Q.S. with distilled water and then freeze to make 8 pounds of ice |

What force is exerted by atmosphere on a disk-shaped region : Suppose a distant world with surface gravity of 6.24 m/s^2 has an atmospheric pressure of 7.16 x 10^4 Pa at the surface. What force is exerted by the atmosphere on a disk-shaped region 2.00 m in radius at the surface of a methane ocean |

Explain the concept of fluid replacement : You have just returned from a twenty five mile jog around the track at the Student Recreational center. As sweat drips from your chin, you contemplate the concept of fluid replacement, but can't find a bottle of Gatorade in your frig |

Obtain the angular speed of the sphere at bottom of slope : A 290-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal, What is the angular speed of the sphere at the bottom of the slope |

Explain how many grams of nacl adding distilled water : How many grams of NaCl would you add to a beaker before adding distilled water (Q.S.) to make 250 mL of an isotonic solution |

Calculate the kinetic energy of the merry-go-round : A horizontal 790-N merry-go-round of radius 1.30 m is started from rest by a constant horizontal force of 45 N applied tangentially to the merry-go-round. Find the kinetic energy (Joules) of the merry-go-round |

What is the frequency of the wheel after clay sticks to it : A potter's wheel is rotating around a vertical axis through its center at a frequency of 1.8rev/s. What is the frequency of the wheel after the clay sticks to it |

## Explain the fermentation of surgars by the action of yeasyA fuel with the potential to supplement if not replace gasoline, formed from the fermentation of surgars by the action of yeasy is called |

## Describe the molarity of a sodium hydroxide solutionWhat is the molarity of a sodium hydroxide solution if 25.0 mL of this solution reacts exactly with 22.30 mL of .253 M sulfuric acid |

## Depict the five three d orbitals in two dimensionsorbitals in two dimensions indicating the Cartesian coordinates appropriate to the drawing and identity these orbitals as being of sigma or pi symemetry. |

## Compute the molar mass that would be obtainedCalculate the molar mass that would be obtained from the actual experimental data under the following conditions. The unknown is methyl propyl ether (CH3OC3H7) |

## Define nitrogen dioxide decomposes according to the reactionNitrogen dioxide decomposes according to the reaction given below where Kp = 4.48 10-13 at a certain temperature. 2 NO2(g) 2 NO(g) + O2(g) |

## Explain the value of w and the work done on the gasAn ideal gas is allowed to expand at constant temperature from a volume of 1.00 L to 5.00 L against a constant external pressure of 2.00 atm. What is the value of w, the work done on the gas |

## Explain the average molar massOne isotope has a mass of 44.0 amu and has a neutral abundace of 69.5% while the other isotope with the mass of 46.08 amu. |

## Compute the binding energy per nucleonCalculate the binding energy per nucleon (in MeV) for P-32 (atomic mass = 31.9739 u). mass H = 1.007825 u and mass n = 1.008665 u. |

## Explain what is the ph of hcl the resulting solutionA compound has a pKa of 7.4. To 100 mL of a 1.0M solution of this compound at pH 8 is added 30 mL of 1.0M HCl. what is the pH of the resulting solution? |

## What is the percent ionization of acid under the conditions0.101 M HNO2 solution contains 0.0067 M H+ ions at 25 oC. What is the percent ionization of this acid under these conditions |

## Explain what is the length of a cubic lose-packed unit cellWhat is the length of a cubic lose-packed unit cell of an element, in picometers, if the atomic radius is 187.0pm |

## To make up the solution of phosphate buffered saline pbsto make up a solution of phosphate buffered saline pbs you need 5mm na2hpo4 anhydrous fw 141.96 0.15 m nacl fw 58.44 |

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