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Find out the correct change in temperature if the two solutions used are not at the same initial temperature, a correction must be made to. How should this be done?
A helium ion having charge 3.2 x 10^-19 is moving at 5.6 x 10^5 m/s in the positive x direction. The magnetic field of 0.8 T is in the positive z direction (toward you). Determine the magnitude and
Explain how do you know when to place a double or triple bond in a Lewis structure? Also how do you know what is connected to what when given a molecular formula such as H3PO4?
The uniform magnetic field is directed on the way to you from this page and a wire is carrying a current from you into the page. The force of deflection acting on the wire is in which direction?
What is the molarity of the Na2S2O3 solution? A 25.00 mL sample of 0.0100 M solution of KIO3 is reacted with an excess of KI. It requires 32.04 mL of Na2S2O3 solution to titrate theI3-&
Wind velocity is 30 km/h in direction 26 degrees north of west. Determine resultant velocity representing path of airplane with respect to ground.
At one instant a proton is moving downward in the uniform magnetic field pointed toward you. As you observe the proton, its motion is in which direction?
Write down a detailed step-by-step procedure for preparing the 500.00 mL of the KIO3 solution in part a, using pure dryKIO3. Make sure that your procedure uses equipment that allows for the neede
Determine the electric field strength and determine the proton's velocity if it is merely 2.50 cm into the field?
Determine the numbers of grams of solid NaOH are needed to prepare the 200 mL of a 0.05M solution? M.W. of NaOH = 40 g/mol
Calculate the freezing point (in C)of a solution prepared by dissolving the 11.3g ofCa(N03)2 (formula weight = 164g/mol) in 115gof water? The molar freezing-point depression constant for the wate
Determine the vapor pressure over a 30C water solution which is having 652g of sucrose, C12H22O11, per liter of solution? Suppose the solution behaves ideally.
You pull a permanent magnet having its North Pole pointing toward you toward a loop of conducting wire which is between you and the magnet. As the North Pole enters the loop the electron current in
The GMAT scores from the sample of 50 applicants to the MBA program point out that none of applicants scored below 450. Determine percentage of applicants scored between given value 500 and 549?
The density of methanol, CH3OH, is 0.791 g/mL and the density of acetonitrile, CH3CN, is 0.786 g/mL. A solution is made by dissolving 15.0 g of methanol in 250.0 mL of acetonitrile.
Copper-55 with a mass of 64.9278 u and copper-63 with a mass of 62.9298 u are in a mixture. Explain how do you determine the percent natural abundance of the two isotopes if the atomic mass of copp
The two solenoid magnets have similar currents. Solenoid 1 consists of a radius of 2.0 cm and windings of 400/cm. Solenoid 2 have a radius of 1.5 cm and 150 windings/cm. Determine the ratio of magne
Calculate the highest occupied molecular orbital for the species, pentadienyl anion? And if someone knows the answer to this question, how do you know. Discuss in detail.
A loop of wire lies in the plane of page. The rising magnetic field is directed via the loop toward you. The induced electron current in the loop is:
Determine the numbers of degrees of temperature rise will occur when a 25.0g block of aluminum absorbs 10kJ of heat? The specific heat of Al is 0.900j/g degrees C.
Determine the numbers of grams of silver chloride can be prepared by the reaction of 100.0 mL of .20 M silver nitrate with 100.0 mL of.15 M calcium chloride? Describe the concentrations of
The variable capacitor in the tuner of the AM radio consists of a capacitance of 1350 pF if the radio is tuned to a station at 550 kHz. (i) Determine what should be the capacitance for the sta
Determine the temperature change that occurs when the 1 mol of H20(l) is subjected to an increase in pressure of 2.24 * 10^6 Nm^-2 while maintaining the constant volume.
Using compass, she discovers that ship's azimuth (direction measured as the angle from north) s 302 degrees and that of island is 49 degrees. Determine distance between ship and island?
Suppose you need to make 200 mL of .1 M solution of AgNO3. you have Ag(NO3) and AgNO3*H20 solids available.