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The barometric pressure in a cavern was measured using a mercury barometer. A value of 74.2 cm of Hg was obtained. How many atmospheres is this?
1) 5.64 atm
2) 9.76 atm
3) 1.024 atm
4) 0.976 atm
5) 56.4 atm
A 0.140-mole quantity of M(NO3)2 is added to a liter of 1.030 M NaCN solution. What is the concentration of M2 ions at equilibrium?
under certain conditions, the combustion of charcoal (C) in the presence of o2 forms carbon monoxide (CO) according to the given balance equation.
If 100.0J of energy are added to 25.0g of water at 50 degrees celcius,what will the final temperature of the water be?
Since it is only slightly soluble, assume that the volume of the solution does not change on dissolution, and calculate the solubility product. Solubility of InF3: 4.0 x 10-2 g/100. mL
what masses of NaCl and water are needed to prepare 1000g of a solution that is 0.90% by mass
A mixture of 82.0 g of magnesium (24.31 g/mol) and 350 g of iron(III) chloride (162.2 g/mol) is allowed to react. What mass of magnesium chloride (95.21 g/mol) can be formed?
The solution which passed through the filter was collected in a beaker and excess sodium sulfate solution was added to this beaker. 0.432 g of fry precipitate was collected from this second solution by filtration. Calculate the percent of magnesiu..
The average pH of normal arterial blood is 7.40. At normal body temperature (37C), Kw = 2.4 * 10^-14.
For the reaction 2HI(g) H2(g) + I2(g), Kc = 0.290 at 400 K. If the initial concentrations of HI, H2, and I2 are all 1.50 × 10-3 M at 400 K, which one of the following statements is correct
predict the formula of a compound that presumably would result from the reaction between magnesium and topaline, and name the compound.
determine what mass of AgCl silver chloride can be formed from 1.03L of a 0.132M solution of AgNO 3 silver nitrate
What is the mass, in milligrams, of mercury in 1.00 kg lake trout that just meets the Northern American standard of 0.50 ppm Hg?
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