A 515 g piece of copper tubing is heated to 95.0°C and placed in an insulated vessel containing 57.0 g of water at 30.0°C. Assuming no loss of water and heat capacity for the vessel of 10.0 J/K, what is the final temperature of the system (c of copper = 0.387 J/g·K)?

Find percentage of data values that will fall in range : The average labor charge for automobile mechanics is $54 per hour. The standard deviation is $4. Using Chebyshev's theorem, find the percentage of data values that will fall in the range of $48 to $60. |

Make cash budget of kelly''s boutique : make cash budget of Kelly's Boutique |

How altered enzyme structure affects enzyme activity : explain how an illness with a fever could affect the digestive system of human. |

Draw the general structure of a carbohydrate : Draw the general structure of a carbohydrate,saturated and unsaturated fats and nucleic acid.What does a pH scale measure? |

What is the final temperature of the system : A 515 g piece of copper tubing is heated to 95.0°C and placed in an insulated vessel containing 57.0 g of water at 30.0°C. |

Problem related to the lease liability : Assume the present value of minimum lease payments at the inception of the lease and before the first annual payment was $615,000 and Jordan appropriately classified the lease as a capital lease. What is the lease liability Jordan should report in.. |

Find difference in proportion of customers prefer each day : A sample of 420 families revealed the following. At the 0.05 significance level, is there a difference in the proportion of customers that prefer each day of the week? |

Explain what proportion of phosphoglycerate will carry : What proportion of 3-phosphoglycerate will carry 14C after five enzymatic turnovers (five equivalents of CO2 are fixed) if purified active |

Possession of the purse and its contents : Assuming Jackie never returns to claim the purse, who gets possession of the purse and its contents, assuming the purse is (a) lost, (b) mislaid, or (c) abandoned? |

## What mass of caco3 did the tablet containAn antacid tablet containing calcium carbonate as an active ingredient required 26.8mL of .112 M HCL for complete neutralization. What mass of CaCO3 did the tablet contain? |

## What is the concentration of the diluted solutionIf 124 mL of 9.50 M nitric acid is diluted to 555 mL, what is the concentration of the diluted solution |

## Calculate the molarity of a solutionCalculate the molarity of a solution made by dissolving 0.850 grams of Na2SO4 in enough water to form exactly 930 mL of solution. |

## How many grams of nitrogen gas are present in gas samplea sample of nitrogren gas is collected in a 100 mL container at a pressure of 688 mm Hg and a temperature of 565 degrees C. how many grams of nitrogen gas are present in gas sample? |

## How many liters of water can be madehow many Liters of water can be made from 34 grams of oxygen gas and 6 grams of hydrogen gas at STP? what is the limiting reactant for this reaction? |

## Calculate an estimated specific heat for the metal25 g of a certain metal is heated in boiling water and then poured into 90 mL of water initially at 22.0oC. After the water has resumed a constant temperature. |

## Determine how many grams of alcl3 are formeddetermine How many grams of AlCl 3 are formed if 30.0 grams of Hydrogen are produced? It is given that the molar mass of AlCl 3 =133.33 g/mol. |

## Calculate the specific heat capacity of zinccalculate the specific heat capacity of zinc given that a 65.5g sample loses 2008J of heat when cooled from 100.0 degrees celcius to 21.1 degrees celcius. |

## What is the molar mass of the unknown gasA 2.50 g sample of an unknown gas occupies 885 mL at 697 mm Hg and 40 C. What is the molar mass of the unknown gas |

## Cobalt chloride in varying concentrations spectrophotometerCobalt Chloride in varying concentrations Spectrophotometer set to a Wavelength = 510 nm % Transmission = experiment #1 = 31.62, experiment #2 = 89.13 and experiment #3 = 98.86 |

## Explain various basic chemistry problemsWhen a mole of C2H4 is combusted it reacts with 3 moles of O2 to produce CO2 and H2O. How many moles of CO2 and how many moles of H2O are produced? |

## Draw the structure of caffeineDraw the structure of Caffeine. Skeletal form only. Locate 2 bonds in the molecule that are obviously polar covalent. |

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