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a 0075m solution of a weak base in water has a ph1121 at 25 degrees celsius calculate the value of kb for this
1 for electromagnetic radiation with a wavelength of 5599 nm a what is the frequency of the radiation in s-1 b what is
calculate the initial volume of a gas if it is compressed to a final volume of 14l at a constant pressure of 27atm and
using data from appendix c in the textbook calculate deltag for the following reactions indicate whether each reaction
consider the following reaction between oxides of nitrogen no2gn2ograrr3noguse data in appendix c in the textbook to
if a mixture of two gases have a total pressure of 189 atm and the pressure of argon in the mixture was 122 atm what is
here is one way to produce methanol co 2 h2nbsprarr ch3oh this reaction has a hnbsprxnnbsp -128 kjnbsphow much heat
the oxidation of aluminium is a pretty common reaction and happens via the equation belownbsp4al 3o2nbsprarr
a metal undergoes allotropic transformation alpha --gt beta at room temperature and high pressure this transformation
the standard reduction potentials of the following half-reactions are given in appendix e in the
in a constant-pressure calorimetry experiment 250 ml of 100 m hclo4nbspwas mixed with 250 ml of 100 m lioh in a
write the balanced net-ionic chemical equations for the reactions that you observed with agno3 and alno33 include phase
when 250 g of sodium hydroxide naoh was dissolved in 5000 g of water a value of 950oc was obtained for deltatcalculate
1 balance the following chemical equationsa so2nbspnbsp nbspo2nbspreg nbspso3b ch4nbsp o2nbspreg nbspco nbsph2oc p
infant tylenol contains 160 mg of acetaminophen c8h9no2 in every 5 ml of medicine if the infant dose is 125 ml how many
1 if 200 g of o2 gas has a temperature of 370 k and a pressure of 570 mmhg what is its volumev l2 how many moles of a
chemistry experiment question a clear solution is heated and forms a precipitate when cooled it returns to clear
solid potassium chlorate forms oxygen o2 gas and solid potassium chloride when heated2 kclo3 3 o2 2 kcla how many
consider the following reaction how many moles of oxygen gas are required to produce 542 moles of sulfur dioxide so2
aluminum chloride alcl3 is an inexpensive reagent used in many industrial processes it is made by treating scrap
determine the concentration of a solution prepared by diluting 50 ml of a stock 250 m cano32 solution to 1500
write the correct chemical formulas with state for the products that would form if any when the following aqueous
if someone takes a breath and the lungs expand from 42 l to53 l in volume and the initial pressure was752 mm hg what is
whennbspn2gnbspreacts withnbspo2gnbspto formnbspno2gnbspaccording to the following equation energy is absorbed from the
a rubber ball with a mass of 066 kg is released from rest from a height of 10 meters above the ground due to the