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Suppose now that you wanted to determine the density of a small yellow crystal to confirm that it is graphite. From the literature, you know that graphite has a density of 2.25 g/cm3. How would you prepare 20.0 mL of the liquid mixture having that density from pure samples of CHCl3 (d = 1.492 g/mL) and CHBr3 (d = 2.890 g/mL)? (Note: 1 mL = 1 cm3.)
V(CHCl3) = mL
V(CHBr3) = mL
A tank having a volume of 1000 ft3 contains 22 lb of CO2, 46 lb of O2 and 154 lb of N2. What pressure will be indicated by a pressure gage attached to the tank if the gas is at ambient temperature (80°F)
Determine whether kinetic energy is being converted to potential energy, or vice versa, in the following process. a) Water cascades downward in a waterfall. b) Electrolysis of water produces H_2 and O_2.
Problem- Following are some statements about the structural features of nucleic acids. Identify whether the statement refers to DNA, to RNA, to both, or to neither by dragging the statement into the appropriate bin.
How will the molar mass of an unknown acid be affected if some of the solid remained after the titration was complete. Will the concentration of the molar increase, decrease, or have no effect
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 3.00 multiplied by 102 mL of solution and then titrate the solution
when 0.250 mol of ch4g reacts with excess cl2g at constant presure according to the chemical equation shown bellow 177
what products may have been formed during the combustion of the gas?
Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume change on addition of HCl
Which of the following will change the equilibrium constant? a. changing temperature, b. nothing changes the value of keq, c.varying the ititial concentration of reactants, d. varying the initial concentration of products, e. changing the volume o..
After drawing up heparin from a vial, the next thing the nurse should do before giving this medication to the patient is which of the following?
Consider a tire at 35 Celcius filled with 32 psig of O2 instead of N2. Calculate the pressure in the tire at -18 celcius
What is the molar mass of butane, C4H10? Express your answer to four significant figures and include the appropriate units. Value and units
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