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If you have 44.6 g of carbon tetrachloride, how many atoms of chlorine do you have? How many grams of sulfur hexafluoride would you need to have 5.25 x 1024 fluorine atoms? A 1.443 g sample of metal is reacted with excess oxygen to yield 1.683 g of the oxide M2O3. Calculate the atomic mass of the element M.
in a coffee-cup calorimeter 1.80 g of nh4no3 is mixed with 75.0 g of water at an initial temperature of 25.00degc.
For the following reaction, 6.72 grams of chlorine gas are mixed with excess water. The reaction yields 5.13 grams of hydrochloric acid.
A 100 mL stock solution contains 4.1 M Na3PO4. When 31 mL of the stock solution is diluted to 73 mL, how many moles of Na+ ions will be contained in the dilute solution
Given a balanced chemical equation and enthalpy of reaction, relate energy change to amount of reactant or product
If the titration of a 25 mL sample of calcium hydroxide requires 34.45 mL of a 0.100 M HCl, what is the molarity of the base. 1. Determine the conjugate acid-base pairs in each of the following reactions:
Write a balanced equation for the reaction that occurs in each of the following cases: (a) Cesium is added to water. (b) Strontium is added to water.
In Mexico, avocados are 125 pesos per kilogram. What is the cost in cents of an avocado that weighs 0.45 lb if the exchange rate is 11 pesos to the dollar
Based on a kc value of 0.210 and the given data table, what are the equilibrium concentrations of xy,x and ,y respectively
Write the balanced molecular equation for the reaction that occurs when H2SO4 reacts with NaOH in aqueous solution
The Ka for boric acid is 7.3 x 10-10. What is the pKa of boric acid?
Draw complete Lewis structure for following condensed structural formula. (CH3CH2)CO
If 352 g of magnesium reacts with excess oxygen to produce 296 g of magnesium oxide, what is the percent yield for the reaction?
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