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Emergency treatment of cardiac arrest victims sometimes involves injection of a calcium chloride solution directly into the heart muscle. How many grams of CaCl2 are administered in an injection of 5.0mL of a 5.0% (w/v) solution and how many milliequivalents of Ca2+?
A canister is filled with 380g of ice and 100. g of liquid water, both at 0 C. The canister is placed in an oven until all the H2O has boiled off and the canister is empty. How much energy in calories was absorbed?
Calculate the molar solubility of Pb(IO3)2 in water by systematic method. {ksp for Pb(IO3)2 = 2.5 x 10^-13}
The reduction reaction has the product 4-tert-butylcyclohexanol which is a mixture of cis and trans isomers. Methanol is the solvent, but I don't think that goes into the balanced equation.
An organic sample (3 grams mass) is taken from an archeological site. The sample has a beta emission rate of 4.3 counts per minute. These decays originate predominantly from carbon-14 with a half-life of 8270 years. If the abundance of carbon-14 i..
The standard free energy of activation of another reaction B is 78.70 kJ mol-1 (18.81 kcal mol-1). Assume a temperature of 298 K and 1 M concentration. By what factor is one reaction faster than the other. Which reaction is faster
What volume of chlorine gas is produced when 0.952 mol of hydrochloric acid reacts completely according
Calculate the number of oxygen molecules per liter of air if the temperature and pressure were 25°C and 1.00 atm, respectively.
Arrange the members of the following set of elements in order of increasing first ionization energies. (Use the drop down lists to indicate your choice, with 1 as the smallest IE and 6 as the largest IE.)
Calculate [Ag+] when a precipitate first appears and identify the precipitate. The Ksp values for AgCl(s) and Ag2CrO4(s) are 1.8×10?10 and 1.1×10?12, respectively. (b) Calculate [Cl? ] and [CrO42? ]
Why can't i reduce carboxylic acid using sodium borohydride while lithium aluminium hydride can do the same thing.
suppose that a fully charged lead-acid battery contains 1.50 of 5.00. what will be the concentration of in the battery
What is the pH of a 0.15 M solution of the weak base ammonia (NH3)? The Ka of the conjugate acid is (NH4) is 5.6e-10.
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