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1.give the literature value for the densities of sulfur,stainless steel(paperclip) and water. 2:using the literature values above,would you expect sulfur (or stainless steel)to float on water or to sink?explain 3:predict the change in temperature expected for 1-butanol,ch3ch2ch2oh, if the same experiment were carried out using 1-butanol. 4:explain why water is not plotted on the delta t versus molecular mass graph in the analysis .(hint:what makes water different from the other 3 solvents?
You are given some reactions as a. Cl2(aq) + 2NaI(aq)= I2(aq) + 2 NaCl(aq), b. Br2(l) + 2K(S)=2KBr(s), c. Pbs( s) + 4H2O2(aq)= PbSO4(s) + 4H2O(l) you just need to Indicate which element is reduced and which is oxidized in the given equations?
Assume you dissolve 6.73 grams Na2CO3 in enough water to make 250 mL of solution. What is the molarity of the sodium carbonate?
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
Determine the concentration of the sodium hydroxide solution? Considering this balanced equation given as :
calculate the molar concentration and the molarity of a sulfuric acid solution of density 1.198 g/mol,
Determine what is element Y if you have a compound consists of element "Y" and H, only and know that it is 79.89% element Y by mass. Each molecule has 3.00 times as many H atoms as Y atoms?
The vapor pressure of a mixture of 400 g of carbon tetrachloride and 43.3 g of an unknown compound is 137 torr at 30 °C. The vapor pressure of pure carbon tetrachloride at 30 ºC is 143 torr
In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed?
Write equations for the reaction of each of the following with (1) Mg in ether followed by (2) additione of D2O to the resulting solution:
A gas confined in a 519.1-mL container exerts a pressure of 107 mm Hg at 38.6 degrees Celsius. At what Celsius temperature will it exert a pressure of 635.7 mm Hg if it is placed into a 644 mL container?
Given that B(SiO) 640 kJ/mol, show that bond enthalpy considerations predict that silicon-oxygen compounds are likely to contain networks of tetrahedral with SiO single bonds
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of Hydrogen gas are formed when 48.7g of sodium are added to water?
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