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3. What mass of CsCl must be added to 0.500 L of water to produce a 6.30 % CsCl solution?(Assume the density of water is 0.9970 g/mL.)
If it takes 1250 J to raise the temperature of 33.5g of a substance 59 deg C what is the specific heat of the substance
Data for the decomposition of hydrogen peroxide at some set temperature T is include below. The rate law depends only on the concentration of H2O2.
A 0.373 gram sample of bovine serum albumin is melt in water to make 0.165 L of solution as well as the osmotic pressure of the solution at 25 °C is found to be 0.843 mbar. Compute the molecular mass of bovine serum albumin.
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 550 mL of a solution that has a concentration of Na+ ions of 0.600 M
Problem- A) For 490.0mL of pure water, calculate the initial pH and the final pH after adding 0.020mol of HCl. Express your answers using two decimal places separated by a comma.
Based on application of the VSEPR theory, which molecule should be polar. A) CCl4 B) BCl3
Question- The rate constant for this first order reaction is .0840 s-1 at 400 C after how many seconds will 23.6% of the reactant remain
Assume that the vapors and solutions are ideal. Calculate the composition (mol% each component) of the condensed liquid. What is the vapor pressure of pure toluene at 94.8°C
When a chiral carbon contains a hydrogen, you should not show the hydrogen, but you must use either a wedge or dashed bond and 2 sticks to establish stereochemistry.
A balloon is filled with helium to a volume of 1.05 x 10^3 L on the ground, where the pressure is 745 mm Hg and the temperature is 20. °C. When the balloon ascends to a height of 2 miles
A 10.0 L balloon contains helium gas at a pressure of 655 mmHg. What is the new pressure of a helium gas at 20.0 L, if there is no change in temperature
2CaH18(g) + 9O2(g) > 2Ca2(g) + 18H2O(g) Enter the coefficients for each compound in order, separated by commas. For example, 1,2,3,4 would indicate one mole of C8H18, two moles of O2, three moles of CO2, and four moles of H2O.
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