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Zinc citrate (Zn_3(C_6H_5O_7)_2) is an ingredient in toothpaste. It is synthesized by the reaction of zinc carbonate with citric acid. 3ZnCO_3(s) + 2C_6H_8O_7(aq) ---> Zn_3(C_6H_8O_7)_2(aq) + 3H_2O(l) + 3CO_2(g). If there are 5.1 mol of ZnCO_3 and 2.05 mol of C_6H_8O_7, which is the reactant in excess? And how much Zn_3(C_6H_5O_7)_2 would be produced under the second condition? Answer in units of mol.
If 18.08 grams of ammonia (NH3) react, how many grams of water should theoretically be produced?
Liquid-in-glass thermometer are of two types:mercury in glass and alcohol plus red dye in glass. the dependence of volume on temperature of mercury and alcohol.
When you heat baking soda (NaHCO3), it breaks down into sodium carbonate powder (Na2CO3), carbon dioxide and water vapor. Write a correct thermo chemical equation and explain what it tells you about the reaction ( The enthalpy of this reaction is ..
The isomerization of cyclopropane to form propene is a first-order reaction. At 760 K, 85% of a sample of cyclopropane changes to propene in 79.0 min. Determine the rate constant for this reaction at 760 K
Aluminum metal dissolved in hydrochloric acid as follows: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
The energy content of 1-liter of whole milk is 680 Cal. Using that data, determine how high can you climb (in meters) on a liter of whole milk.
Using extraction techniques how would you separate a mixture of aniline and toluene using dichloromethane as the extraction solvent?
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
Dehydration upon heating with concentrated sulphuric acid without carbocation rearrangement?
The vapor pressure of chlorine dioxide (ClO2) is 155 Torr at 22.75 C and 485 Torrat 0C. what is the standard enthalpy of vaporization?
Sulfur dioxide reacts with chlorine at 227 oC: SO2(g) +Cl2(g) ↔ SO2Cl2(g) Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel.
Determine How many moles each are in 1.30L of the saline solution if a physiological saline solution contains 174mEq/L each of Na+ and Cl - .
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