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If one sugar cube has an edge that is 1.2 cm in length, how many sugar cubes are required to carpet a house that has 1500 square feet?
The majority of industrial method for the preparation of elemental phosphorus is heating a mixture of phosphate rock, carbon, and sand in electric furnace. The chemical reactions can be represented by 2Ca3(PO4)2 + 6SiO2 ? 6CaSiO3 + P4O10 and P4O10..
How many moles of oxygen are combined with 4.20 moles of chlorine atoms in C2O7?
The original volume of a gas was 500 ml. When the pressure was decreased to 1.3 pascals, the volume increased to 700 ml. What was the original pressure?
If you mix 10 mL of a 0.1 M HCl solution with 8 mL of a 0.2 M NaOH solution, what will be the resulting pH? If a weak acid, HA, is 3% dissociated in a 0.25 M solution, calculate the Ka and the pH of the solution.
1. Calculate deltaGrxn and Ecell for a redox reaction with n=4 that has an equilibrium constant of K=4.7x10^-2. Express each answer using two significant figures.2. A patient is given .055 mg of technetium-99 m, a radioactive isotope with a half-lif..
We heat it all at 80 ° C and, when it achieve the balance , it turns out that 10% of the total mass of water has evaporated. What is the volume of the tank?
Explain why saturated sodium hydrogen carbonate is used to wash the organic layer in the Friedel Crafts Acylation.
calculate the average atomic mass in units of amu for iron fe given that the naturally occurring element exists mainly
Methane is burned in a Laboratory Bunsen burner to give CO2 and water vapor. Methane gas is supplied to the burner at the rate of 5.0 L/ min ( at temperature of 28° C and a pressure of 773 mm Hg).
The formula weight of compound X is 14,200 g/mol How many total mg of X are there in the panda pancreas?
In the second paragraph, analyze the effects the national debt has on our economy. Your reasons must be logical and detailed and must support.
For each of the subsequent state a balanced chemical equation to represent the dissociation of the compound when it is dissolved in water. If the compound wouldn't dissociate write NRX.
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