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1. Write a conclusion on project "medicines uses''
An experiment requires 44.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
Calculate how many mL of 0.100 M NaOH are needed to neutralize completely 26.0 mL of 0.0300 M acetic acid. 2) Calculate how many mL of 0.100 M NaOH are needed to neutralize completely 36.0 mL of 0.0400 M H2SO4 (forming Na2SO4 and water)
A concentrated solution of compound A in the same solvent was diluted from an initial volume of 2.00 ml to a final volume of 25.00 mL and then had an absorbance of 0.733. What is the concentration of A in the concentrated solution
What is the pressure (in millimeters of mercury) inside a container of gas connected to a mercury-filled open-end manometer of the sort shown in Figure 9.4 in the textbook when the level in the arm connected to the container is 17.0 cm lower than ..
suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 122
The tank is first evacuated, and then it is connected to a 50.0 L cylinder of compressed nitrogen gas. The gas pressure in the cylinder, originally at 21.5 atm, falls to 1.55 atm without a change in temperature. What is the volume of the tank?
Assuming an ideal solution, what is the molecular mass of the compound?
Sucrose and sucrose treated with acid produce somewhat different results in Benedicts test. Explain Why
Write the Bronsted-Lowry chemical equation describing how HC4H7O2 behaves when add to water
Consider a system of distinguishable particles having only three nondegenerate energy levels separated by an energy which is equal to the value ofkTat 25.0 K.
If lambda subzero is 2.66E +05 compute alpha if the conductivity of a 7.23 E-03 M MgSO4 is 1255 microseconds/cm
Show that Ka Kb = Kw for a weak acid and its conjugate base OR a weak base and its conjugate acid, using the equilibrium expression for each.
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