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A 100-mL sample of the juice took 9.58 of the iodine solution to reach a starch end point. What is the concentration of Vitamin C.
Given the following reaction: 2 O2 + CH4 CO2 + 2 H2O What mass of CH4 is required to completely react with 100 grams of oxygen.
how many grams of iron will react with water to form iron (III)oxide and 85 liters of hydrogen gas at 19 degrees celsius & 525 torr?
The radius of a iron atom is 124 pm. How many iron atoms would have to be laid side by side to span a distance of 1.71 mm?
Calculate the molarity and mole fraction of acetone in a 1.26 m solution of acetone (CH3COCH3) in ethanol (C2H5OH). (Density of acetone = 0.788 g/cm3; density of ethanol = 0.789 g/cm3.) Assume that the volumes of acetone and ethanol add.
which type of bond has one pair of electrons shared between atoms? a) single covalent b) coordinate covalent c) double covalent d) metallic
Make an energy level diagram, showing ALL suborbitals, large enough to accomodate the 1st 36 elements
An experiment shows that a 115 -,mL gas sample has a mass of 0.170 g at a pressure of 711 mm; Hg and a temperature of 33Celcius. What is the molar mass?
What mass of NH4Cl should the student dissolve in the solution to turn it into a buffer with pH =8.77
Calculate the amount of heat required to heat a 3.8kg gold bar from 27 degree celsius to 63 degree celsius.
Ethanol and gasoline are both automobile fuels. If gasoline is selling for $4.50, what would the price of ethanol have to be in order to provide the same amount of heat per dollar.
The concentration of an enzyme within a cell is extremely low realtive to other material present, yet functions effectively in its metabolic rate. How can enzyme function and never seem to run out?
If 18.4 mL of 0.800 M HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
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