69.0 mL of a 1.30 M solution is diluted to a volume of 278 mL. A 139-mL portion of that solution is diluted using 151 mL of water. What is the final concentration?

What will be the acceleration of the mass : Two masses 3kg and 5kg are held around a pulley as shown in the figure. When the two masses released, what will be the acceleration of the 5kg mass |

Explain the concentration of the acetic acid in moles : A student was asked to determine the strength of the acetic acid in a vinegar solution. For 25.00 mL of vinegar he used 32.05 mL of a 0.4235M solution of sodium hydroxide to neutralize using phenolphthalein as indicator. What was the concentration.. |

Calculate the magnitude of the average forces : A 60 kg person jumps from rest off a 5 m high tower straight down into the water. Determine the magnitude of the average forces that the water exerts on the diver |

Determine the angular acceleration of the merry-go-round : A merry-go-round starts from rest and reaches the angular speed of 4 rpm in the first two minutes. What would be the angular acceleration of the merry-go-round |

Define what is the final concentration : 69.0 mL of a 1.30 M solution is diluted to a volume of 278 mL. A 139-mL portion of that solution is diluted using 151 mL of water. What is the final concentration |

Construct a rudimentary implementation of a shell : Construct a rudimentary implementation of a shell. This will require knowledge of everything that we've learned so far (string manipulation, memory model) as well as a solid understanding of a powerful Unix primitive |

Define description of the mechanism of the reaction : Which of the following terms would be used in a description of the mechanism of this reaction: a. tertiary carbanion b. 2-methylpentoxonium ion Torn between the two |

Demand for text books : Is the demand for the following elastic, moderate elastic, highly elastic? Give reasons.Demand for petrol Demand for text books |

Find the voltage drop across the capacitor : A 4.00-microF capacitor that is initially uncharged is connected in series with a 7.90-k ohm resistor and an emf source with E = 120 V and negligible internal resistance. what is the voltage drop across the capacitor |

## Calculate the kinetic energy of the goose in joulesCalculate the kinetic energy of the goose in joules if the goose has a mass of 16.8lb (pounds) and is flying at 10.3miles/h (miles per hour). ? |

## Explain what is the concentration of hno3What is the concentration of HNO3 if 9.20×10?2 mol are present in 825 mL of the solution |

## Calculate the volume of co2 produced0.01M HCl reacts with 3.18 g Na2CO3. Here 50 mL of HCl is required for the reaction. Calculate the volume of CO2 produced at 273 K and 1 atm. |

## Explain the process of unknown gasExactly 5.02 grams of an unknown gas was sealed in a 3.0 L flask at 37.0oC and a pressure of 1.25 atm. |

## Determine the molecular weight of the soluteA 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m. |

## What is the pressure of the airthe barometer at an indoor pool reads 105 kpa. if the temperature in the room is 30 degrees Celsius, what is the pressure of the air |

## How much heat is required to convert ethanolHow much heat is required to convert 25.0g ethanol at 25C to the vapor phase at 78C? How much to convert 5.00 L? |

## Non-bonding electrons and formal charges where necessaryThree resonance structures of the following cation are possible. One resonance form is given below, but it is incomplete. Complete the given structure by adding non-bonding electrons and formal charges where necessary |

## Explain what is the volume of the naoh solutionA solution of NaOH with pH 13.68 requires 35.00 ml of 0.128 M HClO4 to reach the equivalence point. What is the volume of the NaOH solution |

## Compute the number of moles of reactantsAt room temperature, the equilibrium constant, Keq is approximately 3. Calculate the number of moles of reactants and products expected in the equilibrium mixture of this reaction |

## Find out the volume of solution required to neutralizeDetermine the volume of 0.220 M KOH solution required to neutralize each of the following samples of sulfuric acid. The neutralization reaction is: |

## Find out the stack-gas concentration in units of micro gramsThe sulfur dioxide stack gas concentration from fossil fuel combustion is 2ppm(v). Determine the stack-gas concentration in units of micro grams/m^3 assume 0 degrees Celsius and1atm. |

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