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The gas ignites and all Oxygen and Hydrogen react to make water vapor. Find the pressure in the container after ignition?
The other isotope, having mass 46 amu, accounts for other 83.9%. What must be experimentally determined atomic weight for hypothetical element?
Suppose Benzoic Acid is limiting reagent; compute theoretical and percent yields. Illustrate equation and all steps of the calculations.
If we know skeleton had initial carbon-14 activity of 16 cpm mastodon died and that half-life of caron-14 is 5730 years. How long ago did mastodon die?
A titanium bicycle frame contains same amount of titanium as titanium cube measuring 5.6cm on a side. Use density of titanium to compute mass in kilograms of titanium in frame.
Write the equilibrium partial pressures of all gases and the equilibrium constant for reaction if partial pressure of I2 is 0.027 atm?
Consider solution of Al(no3)3 in water. what ion pairs would be expected to form? write formulas B) would activity of al3 be great or less than molar concentration?
Beginning with 150.0 mL of 0.175 M ammonia, find out solution's pH after each of the given steps: before any additional material is added to the solution.
Compute molar concentration of each ion (Na+ and PO4 3-) in aqueous Na3PO4 solution when 2.0 g of Na3PO4 is dissolved in water so that final volume of solution is 150 ml.
1.00g sample of water is permitted to vaporize completely in 10.0L container. Find pressure of the water vapor at 150 degrees celsius?
It is subjected to carbon-hydrogen analysis and 3.703g of CO2 and 1.514g of H2O are gathered. Compute mass of carbon and hydrogen sample.
How would you make the 50.0 mM MOPS buffer (pKa=7.15) at pH=7.00 using 500 mM sol of MOPS acid and 1.00 M sol of NaOH?
If 0.91 mol of CS2 reacts with oxygen completely according to the equation CS2(l) + 3 O2(g) → CO2(g) + 2 SO2(g) find volume (total) would products occupy if they were measured at STP?
Given that density of oxygen is 1.439 g/L, how many liters of oxygen gas can be produced if 1.0 moles of mercury (II) oxide are heated?
Find mass in grams of sodium nitrate, NaNo3, is produced if 20.0 g of sodium azide, NaN3, in dilute aqueous solution are reacted with excess silver nitrate, AgNO3, according to following chemical eq
Assume two 200.0-L tanks are to be filled separately with gases helium and hydrogen. Find mass of each gas is required to produce pressure of 135 atm in its respective tank at 24 degrees celcius?
Compute: mass of SO(small3) which is formed. volume of SO(small3) that is formed. volume of oxygen used. total volume of gas in container at end of reaction.
Find out amount of sodium which has been actually added, in grams. Explain chemical formula of salt and classify bond as ionic, polar covalent, or non-polar covalent.
Explain in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of significance to healthcare professionals?
Combustion of 5.10 g of this compound produced 12.0 g of CO2 and 3.28 g of H2O. Find the empirical formula of the unknown compound?
Write half-reactions illustrating oxidation and reduction reactions. Recognize which is oxidation reaction and which is reduction reaction.
Write down the equations for the two changes which water, H2O, undergoes. Point out state of products and reactants.
Draw graph of potential energy versus dihedral angle about C-C bond of 1,2-dichloroethane. Illustrate energy differences on the graph and label each minimum.
A follow-up analysis illustrated that combustion products contained 37 g of oxygen. Determine the mass of oxygen in 30 g of X?
Assume you had to travel 29 miles to work every day. If you traveled at speed of light for entire trip, how long would it take you to get to work (in seconds)?