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If a hydrochloric acid solution that was standardized with contaminated sodium carbonate was used in part 2 of this lab, what would be the effect on the calculated mass percentage in an unknown sample and why?
A laboratory glass bottle utilized in laboratory studies of hypoxia contains gas of the subsequent composition expressed as vol%: O2, 18.0%, N2, 80.0%; CO2 2.0%. a) Compute the partial pressure of each of the gas components. Assume atmospheric pres..
a reaction is A--->P with the a reaction order of 2/3 with respect to A. What is the integrated rate law expression for this reaction, starting with the differential form of the rate law
a certain first-order reaction a---products has a rate constant of 9.00times10-3 s-1 at 45c . how many minutes does it
consider the reaction CO2+H2=CO+H2O.The equilibrium concentrations are [CO]= 0.050M, [H2]=0.045M, [CO2]=0.086M, and [H2O]= 0.040M. Calculate K .
The acid base reaction between phosphoric acid, H3PO4, and Calcium hydroxide, Ca(OH)2, yields water and calcium phosphate. For each mole of calcium phosphate produced by this reaction, how many moles of water are produced
How much limestone in kg is need to completely neutralize a lake containing -- of H2 per liter? 5.0 * 10-3g SO4 5.2 * 10^9-L.
What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with 0.850 L of 0.190 M NaI? Assume the reaction goes to completion.
How much heat is liberated at constant pressure if .889 g of calcium carbanate reacts with 43.9 ml of .756 M hydrochloric.
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2(g) + 3H2(g) --> 2NH3(g) Assume 0.170 mol of N2 and 0.543 mol of H2 are present Initially
how many kilojoules are required to raise the temperature of a 150. g sample of silver from 25 degree celcius to 135
A gas is heated from 269 K to 283 K while its volume is increased from 21.5 L to 37.0 L by moving a large piston within a cylinder. If the original pressure was 1.10 atm, what would be the final pressure?
After that 1.00mL of a 10.9mM Lithium standard was added to 9.00mL of serum as well as this spiked serum gave an intensity reading of 893 units. Explain what is the original concentration of Li in the serum
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