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A 100.0 g sample of a metal M is burned in air to produce 103.7 g of its oxide with the formula M2O. What is the atomic mass of the metal?
A) 150 amuB) 370 amuC) 290 amuD) 216 amuE) 73 amu
Under certain conditions, the substance ammonium nitrite can be broken down to form nitrogen and water. If 32.4 grams of ammonium nitrite react to form 14.2 grams of nitrogen
A certain second-order reaction (B-> Products) has a rate constant of 1.80×10^-3 M^-1xs^-1 at 27C and an initial half-life of 216 s . What is the concentration of the reactant B after one half-life?Express the molar concentration numerically.
An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. What is the molarity of silver nitrate in the solution?
Based on the functional group(s) present in the two compounds, determine 3 physical properties for each of the two compounds. Using these physical properties determine how each of the two compounds uniquely function in the products in which they ar..
How many grams of Cuso4 are needed to prepare a .150 molal solution in 300 grams of water?
The isotope 172Ta undergoes decay by positron emission. After 2 hours , 1/6 of the initial amount of 172Ta remains undecayed. The half- life of the isotope is
how efficient is the extraction of tea leaves containing 1.0g of caffeine with two 30mL portions of chloroform over that of a single-step extraction? KD= 8.36 at 25 C)
while heating two different samples of water at sea level one boils at 102 c and one boils at 99.2 c. Calculate the percent error for each sample from the theoretical 100.0 c
what is the major type of force that must be overcome to allow each of process below
2I2 + N2H4 → 4HI + N2 a. How many grams of I2 are needed to react with 36.7 g of N2H4?
Liquids cannot be compressed easily. What does this imply about the amount of space that must be present between the individual liquid particles?
When C2H5OH +3O2 produces 2CO2 + 3H2O,determine how many grams of oxygen gas are essential for complete combustion of 421grams of ethanol ?
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