Calculate the frequency of the light
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A gas filed ballon having a volume of 2.50L at 1.2 ATM and 20 degrees celcius is allowed to rise to the stratosphere where the temperature and pressure are -23 degrees celcius and 3.00 x 10^-3 atm respectively. Calculate the final volume of the bal
Which of the binary compounds formed by the following pairs of elements contain polar covalent bonds?
Carbon dioxide is dissolved in an aqueous solution at 303 K at a concentration of 0.90 x 10-4 kg/kg. Henry's Law constant at these conditions is 0.186 x 104 atm. What is the partial pressure of CO2 in equilibrium with the solution in order to arrive
The average distance between Mars and Earth is about 1.3 x 10^8 miles. How long would it take TV pictures transmitted fromt he Viking space vehicle on Mars' surface to reach Earth? ( 1 mile = 1.61 km)
The SI unit of length is the meter, which is defined as the length equal to 1,650,763.73 wavelengths of the light emitted by a particular energy transition in krypton atoms. Calculate the frequency of the light to three significant figures.
What mass in grams of hydrogen is produced by the reaction of 4.73 g of magnesium with 1.83 g of water?
An element crystallizes in a body-centered cubic lattice. The edge of the unit cell is 2.52 \AA, and the density of the crystal is 6.11 {\rm g/cm^3}
A chunk of gold with an unknown mass is heated to 163 degrees C and dropped into 38.0 grams of water at 25.0 degrees C. If the final temp of the water is 36.5 degrees C, what is the mass of the gold in grams?
A cylinder containing 23.5 moles of nitrogen gas has a volume of 9.81L. What is the pressure of the gas at 23°C?
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Examine historical literature to the most current period to see the growth of romanticism and EXISTENTIALISM. any major developments
Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
Prior to your taking this graduate HR law class you had heard of the term "gender stereotyping," but didn't know much about it.
You are a social worker working with foster children. You are making a home visit to Katie, age nine, and her foster family.
Question: Identify a true statement about validity as applied to a test. Multiple choice question
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Sahir is the most active student in your kindergarten class. He tends to be very disruptive when the teacher you work with is teaching the class,