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Two cars lost in a blinding snow storm are traveling across a large field, each thinking they are on the road. They collide. If the distance x is 161 meters and the car on the left is travelling at
Initially a container contains 0.60 M HI, 0.038 M H2, and 0.15 M I2 at equilibrium. What is the new equilibrium concentration of H2, if the H2 concentration is increased by 0.299 M?
The circular top of a can of soda has a radius of 0.018 m. The pull-tab has an area of 2.03 10-4m2. The absolute pressure of the carbon dioxide in the can is 1.4 105Pa. Find the force that this gas
Discuss the differences observed in the IR and NMR spectra of 3-nitrophthalhydrazide and luminol that are consistent with reduction of the nitro function to an amino group in this experiment (synth
certain anesthetic contains 64.9% C 13.5% h and 21.6% O by mass. at 120 degrees celsius and 750 mm hg, 1 l of the gaseous compound weighs 2.3g what is the molecular formula of the compound'
In about 200 words, outline the issues that a user might encounter when using a web browser on a smart phone to view a web page. explain what a web designer might do to address those issues.
The normal boiling point of the solution is 61.51?C, the normal boiling point of CCl4 is 61.2?C. The boiling point constant for CCl4 is 4.95 K · kg/mol. What is the molar mass of the compound
An airtight box has a removable lid of area 1.1 10-2m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.75 105Pa. The inside of the box is completely
A student found that her mixture contained 6% NH4Cl, 29% NaCl, and 75% SiO2. Assuming that her weighing and calculations were correct, what was the possible source of error in her experiment?
Suppose that ammonia (a monoprotic base), applied to a field as a fertilizer, is washed into a farm pond containing 3.0 × 106 L of water. If the pH of this pond is found to be 9.81, what volu
Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 2.2 1028 kg and 2.0 103 m. (a) Find the density of such a star.
How many moles of oxygen are needed to react completely with 2.20×10^24 molecules of acetylene?
Show the mechanism that forms the three products. Predict the major and minor products. Explain your choices.
Calculate the pH at the halfway point and at the equivalence point for each of the following titrations. (a) 100.0 mL of 0.30 M HC7H5O2 (Ka= 6.4 multiplied by 10-5) titrated by 0.30 M NaOH.
The system CO2(g) + H2(g) - > H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO. H
Which reagent or test could you use to distinguish between ethynylbenzene and vinylbenzene
What was the upward force of the air resistance while the coffee filter was falling at terminal speed?
The half-lives are 50.0 min for A and 18.0 min for B. If the concentrations of A and B are equal initially, how long will it take for the concentration of A to be four times that of B?
Calculate the standard reaction enthalpy for the oxidation of nitric oxide to nitrogen dioxide
The density of helium gas at 0 oC and 1.00 atm is 0.17685 g/L. What is the volume of a balloon containing 10.0 g of helium under the same conditions?
It travels with this constant speed for the next 5.00 s. The elevator then undergoes a uniform acceleration in the negative y direction for 2.00 s and comes to rest. What does the spring scale regis
What is the difference between Valence bond theory and VSEPR theory? is it just that one shows bond angles and the other doesnt?
What is the mass of a mixture of 1.33x10^24 formula units of Na2SO4, 1.500 moles of H2O and 3.77g of AgCl?
460 kg hot-air balloon takes off from rest at the surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process. At what