1. The inside diameter of an open cylindrical tank was measured. The results of four replicate measurements were 5.4, 5.2, 5.5, and 5.2 m. Measurements were also made of the height of the tank, yielding 9.9, 9.8, and 9.6 m. Calculate the volume of the tank and the uncertainty in that volume.

Evaluate the partial pressure of each gas in the container : the total pressure in the container is 3.60 atm. Calculate the partial pressure of each gas in the container. |

What is the net charge inside the cube : A cube has one corner at the origin and the opposite corner at the point . The sides of the cube are parallel to the coordinate planes. What is the net charge inside the cube |

Evaluating the roles played by tourism destination : Prepare a report evaluating the roles played by tourism destination stakeholders or destination management organisations |

Calculate the time it takes for the ball to fall from rest : A wrecking ball is hanging at rest from a crane when suddenly the cable breaks, Find the time it takes for the ball to fall from rest all the way to the ground |

Evaluate the volume of the tank and the uncertainty : The results of four replicate measurements were 5.4, 5.2, 5.5, and 5.2 m. Measurements were also made of the height of the tank, yielding 9.9, 9.8, and 9.6 m. Calculate the volume of the tank and the uncertainty in that volume. |

Find its position at the first and second instants : The position of the front bumper of a test car under microprocessor control is given by x(t) = 2.07 m + (4.50 m/s2)t2 - (0.100 m/s6)t6. Find its position at the first and second instants when the car has zero velocity |

State correctly balanced equation is equal to what number : Balance the following redox equation in acidic solution: As + ClO3- => H3AsO3 + HClO. The sum of the coefficients of all reactants and products in the correctly balanced equation is equal to what number |

Find how fast will automobile be traveling at that instant : At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.0 m/s2. How fast will the automobile be traveling at that instant |

Explain the concentration of the original propionic acid : A 25.00 mL sample of propionic acid, CH3CH2COOH, of unknown concentration was titrated with 0.1137 M KOH. The equivalence point was reached when 40.17 Ml of base had been added. The concentration of the original propionic acid is |

## Explain how many days would be required for a sampleThe half life for the radioactive decay (first order process) of 32P is 14.2 days. How many days would be required for a sample of radiopharmaceutical containing 32P to decrease to 20% of its initial activity |

## What is the molcular weight of the gasThe density of an unknown gas is 2.00 grams per liter at 3.00 atmospheres pressure and 127 degrees C. What is the molcular weight of the gas? |

## Explain what is the ph of na3po4What is the pH of Na3PO4. While this is a triprotic species, you may ignore two of the Ka's and concentrate on the single Ka that is appropriate for this problem. |

## State a sample of hydrogen is collected in a eudiometerA sample of hydrogen is collected in a eudiometer at a temp of 23C. If the atm is 735 torr, what is the pressure of the carbon dioxide |

## A gaseous mixture of and contains 368 nitrogen by mass whata gaseous mixture of and contains 36.8 nitrogen by mass. what is the partial pressure of oxygen in the mixture if the |

## Explian what is the percent composition of this solutionDr. Carvell made up a 5X stock of ONPG stock solution that has a concentration of 50 mN. The molecular mass of ONPG is 354.7. What is the percent composition of this solution |

## Explain coal-burning electric power plantsSulfur dioxide in the effluent gases from coal-burning electric power plants is one of the principal causes of acid rain. One method for reducing SO2 emissions involves partial reduction of SO2 to H2 S |

## Explain the direction of the net reactionConsider the reaction H2(g) + I2(g) -> 2HI(g) delta G degrees at 298K = 2.60 kJ/mol. In an experiment the initial pressures are H2=4.26 atm, I2 = 0.024atm, and the HI =0.23atm Calculate A. Dellta G and B. predict the direction of the net reaction |

## Explain what is the ph of the solution of acetic acidA solution is made by adding 70.00grams of sodium acetate to 550.0mL of 0.60 mol/L solution of acetic acid. a.What is the pH of the |

## Explain an insulated tank is divided into two equal partsAn insulated tank is divided into two equal parts. Both halves contain the same ideal gas but one is at 300K and 2 bar while the other one is at 1 bar. |

## Determine the ph of a buffer composedCalculate the pH of a buffer composed of .50 M formic acid (HCO2H) and .70 M sodium formate (HCO2-Na+) before and after the addition of 10.0 ml of 1.0 M HCL |

## Define what is the molar mass of thyroxineThyroxine is an important hormone that controls the rate of metabolism in the body, and it can be isolated from the thyroid gland. When 0.455 g of thyroxine is dissolved in 10.0 g of benzene, the freezing point of the solution is 5.2 °C. What is t.. |

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