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In certain part of the country ,there is an average of 710 people per square mile and o.72 internet services per person . what is the number of internet services in an area of 5.0km square?
A mixture of 30 mol% CO, 65 mol% H2, and 5 mol% N2 is fed to a methanol (CH3OH) synthesis reactor, where the following reaction occurs
1.00 mol of phosphorus reacted with excess fluorine: P4 + 6F2 -> 4PF3 Calculate the number of moles of PF3 produced, assuming the reaction went to completion
For the following reaction, 4.91 grams of sodium are mixed with excess water. The reaction yields 5.83 grams of sodium hydroxide.
How many milliliters of 1.40 M H2SO4 are required to react with 5.00 g of solid containing 50.0 wt% Ba(NO3)2 if the reaction is as shown. Ba2+ + SO 4-2 BaSO4(s)
Given the following thermochemical equation: NO(g) + O3(g) ---> NO2(g) + O2(g) delta H= -198.9 KJ/mol O3(g) ----> 3/2 O2(g) delta H= -142.3 KJ/mol O2(g) ----> 2O(g) delta H= +495 KJ/mol determine the enthalpy change for the reaction: 2NO2(g) ---->..
In one city, a balloon with a volume of 6.0 L is filled with air at 101 kPa pressure. The balloon in then taken to a second city at a much higher altitude
Determine the pH change when 0.112 mol KOH is added to 1.00 L of a buffer solution that is 0.394 M in CH3COOH and 0.246 M in CH3COO-. Determine the pH change when 0.095 mol HI is added to 1.00 L of a buffer solution that is 0.379 M in HClO and 0.3..
What is the van't hoff factor of a compound that has a osmotic pressure of 2056 torr at 25 degrees C and a concentration of 0.1522M
What is the solubility of Ca(OH)2 in water, at the experimental temperature, in grams of Ca(OH)2 per 100 mL of solution?
find the velocity of an electron emitted by a metal whose threshold frequency is 2.15times1014 rm s-1 when it is
What is the mass of the solid NH4Cl formed when 73.0 g of NH3(g) are mixed with an equal mass of gaseous HCl? What is the volume and identity of the gas remaining, measured at 14.0°C and 752 mmHg? (8 points)
in the reaction p4 5 o2 rarr 2 p2o5 how many moles of o2 are consumed each time 0.5 moles of p2o5
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