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Explain how many grams of water can be formed by mixing 10.0 grams of Hydrogen as well as 20.0 grams of Oxygen? Identify the preventive and surplus reactant. Explain how many grams of excess reactant will be left over?
a 0.4512 g sample of a primary-standard-grade na2co3 required 36.44 ml of a h2so4 solution to reach the end point of
How many grams of formaldehyde, H2CO, are in a 500 ml of a 40% solution of formaldehyde in water. (Assume for this problem that the density of the formalin solution is 0.98 g/ml)
H2S and H2O have similar structures and their cenertal atoms belong to the same group. Yet H2S is a gas at room temperature and H2O is a liquid. Use bonding principles to explain why this is.
You are interested in making 1L of 75mM phosphate buffer pH 7.4. You have a starting solution of 1 M H2PO4- and a 0.5 M solution of HCL. Explain how you would make this buffer.
Calculate the pH of the resulting solution after the following volumes of HNO3 have been added. (e) 50.0 mL (f) 100.0 mL Show the work please
A 12.00 g sample of manganese is heated and allowed to react completely with the oxygen in the air to form an oxide having a mass of 18.99 g. What are the moles for each component? Also, what is the whole number ratio of manganese to oxygen.
A 4.63 g sample of a molecular compound is dissolved in 103 g of tetrachloromethane (carbon tetrachloride). The normal boiling point of the solution is 61.51?C.
If you look at a reaction for an esterification reaction, you cannot tell where the oxygen comes from (acid or alcohol). Draw the mechanism of this reaction, and devise an experiment using the mechanism and O18 (O18 isotope) to help prove unequivo..
Determine the entropy of an ideal gas with cp=(7/2)R,between the following states: P1=1bar,T1= 300K, P2= 0.5bar, T2= 500K
when 96.4 g of god at some temperature is added to 25.0 g of water at 23.4 c in a calorimeter the final temperature of
you performed these reactions in an acidic solution diluting with 0.1m hno3. this is because iron forms an insoluble
When the following equation is balanced using the smallest possible integers, what is the exponent of H2O in the reaction quotient expression
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