1) Compute the pH at the temperature of 25 0C of a solution prepared by mixing 50 mL of 1.60 M sodium hydroxide solution to 0.5 of .0850 M Furoic acid HC_{5}H_{3}O_{3}.

2) How do you compute the density of Helium (He) in g/L in a stratospheric weather balloon at an altitude of ca 15,000 m; t = - 43 oC, and P = 66,000 Pa?

What is the mass of the apple : The gravitational acceleration on the Moon is a sixth of that on Earth. The weight of an apple is 1.03 N on Earth. (a) What is the weight of the apple on the Moon? (b) What is the mass of the apple? |

Evaluation of the importance of the leadership dynamics : Alternatives for moving forward with the new organizational structure that will not cause unnecessary chaos in the workplace. Evaluation of the importance of the leadership dynamics when it comes to prior knowledge and skills. |

T test for independent groups-t test for matched groups : Outline the difference between the t test for independent groups and the t test for matched groups. A researcher computed the F ratio for a four-group experiment.The computed F is 4.86. The degrees of freedom are 3 for the numerator and 16 for the .. |

What is the new range : In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar and has a range of 26 m. Suppose the launch speed is doubled, and the projectile is fired at the same angle above the grou.. |

Compute the ph at the temperature : Compute the pH at the temperature of 25 0C of a solution prepared by mixing 50 mL of 1.60 M sodium hydroxide solution to 0.5 of .0850 M Furoic acid HC 5 H 3 O 3 . |

Justify a decision to exempt the grandson from organization : Using justice theory, justify a decision to exempt the grandson from your organization’s no-drugs policy. Could you make the same decision as a profit maximize? |

Explain why would e-presto establish the ethics line : Ethics Line is a toll-free phone number that employees can call any time of the day, any day of the week to discuss ethics and report suspected unethical or improper conduct. Explain why would E-presto establish the Ethics Line? |

P-value concept approach : The Speedy Oil Change Company advertised a 15-minute wait for an oil change. A sample of 23 oil changes showed a mean time of 16.5 minutes and a standard deviation of 4.3 minutes. |

Information of independent sample t test : Two new york designs are under consideration for possible adoption in an assembly plant. A time study is conducted with 10 workers using design 1, and 12 workers using design 2. The means and standard deviation of their assembly times in minutes a.. |

## Determine the weight of chlorine in original sampleA 0.5485 g solid mixture have only ferrous chloride hexahydrate and ferrous ammonium sulfate hexahydrate. dissolved in 1M sulphuric acid get oxidized to Fe3+ with hydrogen peroxide, and get precipitated with cupferron. |

## Determine the percent by mass of calcium carbonateTo find the % by mass of a compound in a given sample - Determine the percent by mass of calcium carbonate in the sample. State any assumptions. |

## Determine what is the observed rate for the reactionDetermine what is the observed rate for the given reaction - empirically determined rate |

## Estimate the thickness of the lipid bilayerEstimate the thickness of the lipid bilayer in a biological membrane - Estimating the thickness of a membrane by using bond distance. |

## How each stereoisomer is formed in the reactionDraw the accepted mechanism for each reaction and illustrate how each stereoisomer is formed in the reaction. |

## What is the molar flow rate of n2100 mol/h of n-octane is burned in 80.0% excess air to 95.0% conversion. What is the molar flow rate of N2 in the stack gas if The n-octane is converted to a mixture carbon monoxide, carbon dioxide, and water, where the ratio of CO2 to CO is 4:1? |

## Determine the molecular weight of nonelectrolyte compoundA solution, made by dissolving 62.07 g of a nonelectrolyte in 500 g of H2O, exhibits a freezing point of -1.86 °C. Determine the molecular weight of this nonelectrolyte compound? For water Kf = 1.86 °C m-1Kb = 0.51 °C m-1 |

## Weight of hydrogen when sodium is droppedIf a sample of sodium is dropped into a container of water the reaction is: |

## Determine the mass of concentrated liohA multiple stage evaporate process concentrates a weak solution of LiOH from 4.48 wt% to 26.78wt%. This evaporator processes 10 metric tonnes of solution each day. |

## Determine the pressure in the flaskCalculate the final volume of the gas,and express your answer in milliliters and determine the pressure in the flask if the temperature is raised to 25 degree celcius? |

## Determine how many lengths of id pipe are requiredA commercial plant is to treat 320 m3/hr of feed consisting of 50 % A, 50% inerts at 25 atm and 350ºC to obtain eighty percent conversion. Determine how many 2-m lengths of 2.5 cm ID pipe are required? |

## Determine the osmolarity of solutionDetermine osmolarity of solution when 25.0 grams of aluminum chloride dissolves in 2.50 liters of H2O. |

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