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.A baseball pitcher's fastball is clocked at 100 miles per hour (mph). Calculate the wavelength of a 141 g baseball in nm at this speed. What is the wavelength of a hydrogen atom at the same speed?
In a calorimeter, 100 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed.
what is the maximum amt of (Ba2+) that can be maintained in 1.9 L of a .030 M solution of Na2SO4.
Calculate the number of grams of sulfuric acid in 0.520 of battery acid if the solution has a density of 1.35 and is 37.4 sulfuric acid by mass.
Determine the amount of hydrochloric gas that should be bubbled into the buffer to triple hydronium ion concentration is closest to what?
Phosphorus-32 has a half-life of 14.0days . Starting with 6.00g of 32p , how many grams of phosphorous will remain after 42.0days.
Heart pacemakers are often powered by lithium-silver chromate "button" batteries. The overall cell reaction is: 2 Li(s) + Ag2CrO4(s) -> Li2CrO4(s) + 2 Ag(s)
A copper wire (density = 8.96 g/cm3) has a diameter of 0.44 mm. If a sample of this copper wire has a mass of 50. g, how long is the wire?
Determine how many grams of carbon dioxide will be present in the equilibrium mixture? Considering the given equations CO(g) + H 2 O(g) CO 2 (g) + H 2 (g) if it is given =K c = 23.2
carbon dioxide escapes due to A leak , leaving only 3.5 moles of CO 2 inside the balloon. Determine the new volume of the balloon?
A sample of argon gas occupies a volume of 950 mL at 25.0°C. What volume will the gas occupy at 50.0°C if the pressure remains constant?
How many grams of NaOH are contained in 230.0 mL of a 0.800 M sodium hydroxide solution?
A tightly sealed 5.0 L flask contains argon at 69.0 deg. C and 781 mm Hg. The flask is heated until the pressure is doubled. What it the temperature of the gas.
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