A 14.31 g sample of hydrated magnesium sulfate (MgSO3• x H2O) is heated to remove the water of crystallization and 6.99 g of anhydrous magnesium sulfate (MgSO4) remains. What is the value of x? The value has to be a whole number. Please explain how to do the problem.

Calculate how much more quickly effuses : calculate how much more quickly 235 ^UF6 effuses than 238 ^UF6. give the answers as the ration of rates of 235 ^UF6 to 238 ^UF6 to four decimal places. |

Find the partial pressure of each gas in the mixture : A gaseous mixture of O2, H2, and N2 has a total pressure of 1.50 atm and contains 8.20 g of each gas. Find the partial pressure of each gas in the mixture. |

Calculate required reserves and excess reserves : Calculate Required Reserves and Excess Reserves. What is the total amount of money this bank could create by loaning all of its Excess Reserves? |

Calculate the ph of this solution : Consider a solution formed by mixing 51.0 mL of 0.100 M H2SO4, 27.0 mL of 0.100 M HOCl, 25.0 mL of 0.200 M NaOH, 25.0 mL of 0.100 M Ca(OH)2, and 10.0 mL of 0.150 M KOH. Calculate the pH of this solution. |

Define sample of hydrated magnesium sulfate : A 14.31 g sample of hydrated magnesium sulfate (MgSO3• x H2O) is heated to remove the water of crystallization and 6.99 g of anhydrous magnesium sulfate (MgSO4) remains. |

Probability that sample of four fishing days daily catch : The probability that during a sample of four (4) fishing days, the weight of the daily catch will be between 109 tons and 151 tons is? |

Calculate the present worth of the incremental system : Perform an annual equivalence analysis for the two options, and state which is the better option and why. Calculate the present worth of the incremental system (1 - 2): and state which option is better and why. |

Schedule of compensation expense : prepare a 5-year (2009-2013) schedule of compensation expense pertaining to the 40,000 SARs granted to president scott. |

What effect does glutamate produce on a postsynaptic neuron : What effect does glutamate produce on a postsynaptic neuron. |

## Calculate the amount of hcn formedIf a sample of 0.190 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams. |

## Analysis of water hardnessIn an experiment for measuring water hardness in a water sample, using Atomic Absorption Spectrophotometry, I obtained a value of 173.74 ppm hardness for my water sample. |

## What is the radius of the cross section of a cylinderWhat is the radius of the cross section of a cylinder that has a volume of 644.0 m3 and a height of 12.6 m? (Volume=πr2×height)? |

## Explain how many ml of concentrated sulfuric acidhow many ml of concentrated sulfuric acid would be required to mae 1 L of 0.2N solution |

## What is the molarity of a solutionWhat is the molarity of a solution prepared by dissolving 4.92 g of calcium nitrate, Ca(NO3)2, in 250 mL of water? (The molar mass of Ca(NO3)2 is 164 g/mol.) |

## Calculate the partial pressure of each gasCalculate the partial pressure (in atmospheres) of each gas, Assuming that the total pressure of the gases is 1.34atm{rm atm} and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, |

## What is the new volume of the balloonWhen 0.549 moles of a certain gas fill a balloon the volume is 75 mL. If enough of the same gas is added to the balloon until 1.44 moles of gas are present, what is the new volume of the balloon? |

## 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? |

## Explain sampled from known concentrationYou have a volume of 100 L at a concentration of 100 PPM of benzene. If you later sampled from this known concentration at a temperature of 15° C |

## Determine impeller diameterStep-wise solution to a numerical problem related to a flocculation-based water treatment plant having a flow of 25 MGD. The plant is to employ alum coagulation. |

## Creating lewis structure for the po4-3 ionDraw the Lewis structure for the PO4-3 ion, indicating any resonance forms. On the basis of electron configurations, predict the formula of the Type I ionic compound formed from the elements Z=49 and Z=51. |

## What is the ph of an 85 ml solutionWhat is the pH of an 85 mL solution containing .215 M NaHCO3 and .203 M Na2CO3? |

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