1/ the percent yield for a given reaction is 67% . If the theoretical amount is predicted to be 6.14g what was the actual yield for the reaction?2/ given the unbalanced equation, NH4NO2(s) -> N2(g)+ H2O(I) how many grams of H2O are produced from the decomposition of 0.58g of NH4NO2 ?
Compare and contrast the best jet range profiles. Which is best and why?
Constant Mach, Constant Cruising Altitude.
Constant Thrust, Constant Cruising Altitude.
Decreasing Mach, Constant Cruising Altitude.
Constant Mach, Increasing Altitude.
A diver springs upward with an initial speed of 1.7 m/s from a 4.0 m board.(a) Find the velocity with which he strikes the water. (Hint: When the diver reaches the water, his displacement is y = -4.0 m (measured from the board), assuming that the downward direction is chosen as the negative direction.)
Compute the boiling point of this solution:1.00 X 10³g CËÂËÁHËÉOËÇSËÃË(1,5-naphthalenedisulfonic acid) in 1.00 X 10³g HËÃO (nonionizing solute)The freezing point of H2O is lowered 1.86oC per mole of solute.The boiling point of H2O is raised 0.512o C per mole of solute.
How much energy (in kilojoules) is required to convert 225 of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 ? The familiar “ether” used as an anesthetic agent is diethyl ether, Its heat of vaporization is +26.5 at its boiling point.
Compute the equilibrium concentration for Fe3+ at pH= 7 (i.e. [H+] = 1.0 x 10-7). Include the appropriate units.[Fe3+]= ?Note: This question pertains to the question submitted before this one.Thank you
compute the equilibrium concentration for Fe3+ at pH= 7(i.e. [H+] = 1.0 x 10-7). Include the appropriate units.[Fe3+]= ?Fe(OH)3 + 3H+(aq)⇌ Fe3+(aq) + 3H2O(l) K= 8600K…
3. (8 marks) In rat coat colour, two independently assorting genes A and R interact as follows:A-R- Grey aaR- Black A-rr Yellow aarr CreamThe phenotypes are only observed in the presence of the dominant allele of a third independently assorting gene C. The recessive genotype cc for this gene causes albinism regardless of the genotype at the A and R genes. Four different homozygous albino strains are each crossed with a true-breeding Grey strain. They produce Grey F1 rats. The F1 rats in turn produce large litters of F2 rats in the proportion shown below:Albino Line 1: 9 Grey : 3 Black : 4 AlbinoAlbino Line 2: 3 Grey : 1 AlbinoAlbino Line 3: 9 Grey : 3 Yellow : 4 AlbinoAlbino Line 4: 27 Grey: 9 Yellow: 9 Black : 3 Cream : 16 AlbinoFor each cross state the genotype of each albino line. Give reasons for your conclusion, being sure to explain the observed F2 phenotypic ratios
He 1.00 L at 300. torr, Ne 1.00 L at 0.527 atm, Ar 2.00 L at 45.0 kPa. Assuming the connecting tubes have negligible volume, what is the partial pressure of each gas and the total pressure after all the stopcocks are opened?
A 5.0 g piece of potassium metal is tossed in 150 mL of water held in an insulatedcontainer. The potassium reacts with some of the water, producing potassium hydroxide and hydrogen gas.a) Given the following information, determine the temperature of the resulting solution of potassium hydroxide?The starting temperature of both the potassium metal and the water was 20.0°C.The heat capacity of water is 4.18 J/g-deg.You may assume that resulting solution of potassium hydroxide has the same heatcapacity as that of pure water.The molecular weight of K is 39.1 g/molb) Would you expect ΔE° to be the same as ΔH° for this reaction? Explain.
(a)Potassium metal reacts with water to form potassium hydroxide and hydrogen gas as givenbelow.1K ( s ) + H 2O ( l ) ﾾ ﾾﾾ K + ( aq ) + OH – ( aq ) + H 2 ( g )2oThe enthalpy of…
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