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Lead metal can be extracted from a mineral called galena, which contains 86.6% lead mass. A particular ore contains 68.5% galena by mass. If the lead can be extracted with 92.5% efficiency what mass of ore is required to make a lead sphere with a 5.00 cm radius?
A 1.30 g sample of dry ice is added to a 745 mL flask containing nitrogen gas at a temperature of 25.0 degrees Celcius and a pressure of 715 mmHg.
If 22 mL of 5.8 M H_2SO_4 was spilled, what is the minimum mass of NaHCO_3 that must be added to the spill to neutralize the acid.
In the reaction BaCO3 + 2HNO3 -> Ba(NO3)2+CO2+H2O, what mass of Ba(NO3)2 can be formed by combining 55g BaCO3 and 26g HNO3?
aswer the questions1. use a spreadsheet to make an xy scatter plot label the axes and give it a title.2. use a
when hydrochloric acid reacts with magnesium metal hydrogen gas and aqueous magnesium chloride are produced. what
Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction
what is the balanced equation for copper ii hydroxide acetic acid hc2h3o2? and what is its reaction single or double
hydrochloric acid is sold as a concentrated aqueous solution. if the molarity of commercial hcl is 12.0 and its density
Calculate the amount of heat transferred when 7.10 g of Mg(s) reacts at constant pressure with excess oxygen. How many grams of MgO are produced during a run of this reaction which experiences an energy change of - 234 kJ
consider the following reaction So2Cl2 + Cl2. A reaction mixture is being made containing an initial So2Cl2 of 2.3 x 10 -2. At equilibrium Cl2 = 1.0 x 10 -2. Calculate the value of the equilibrium constant
Calculate the mass/volume percent, % (m/v), for the solute in each of the following solutions. Express the answer using 2 sig figures.
Write the complete stepwise mechanisms for reactions below. Show all intermediate structures and all electron flow with arrows.
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