A gas at 772 mmHg and 35.0°C occupies a volume of 6.85 L.

Introductory Chemistry 5
Is the precipitate in a precipitation reaction always a compound that is soluble or insoluble? Explain.

Chemistry 11
The thin outer layer of Earth, called the crust, contains only 0.50 percent of Earth's total mass and yet is the source of almost all the elements (the atmosphere provides elements such as oxygen, nitrogen, and a few other gases). Silicon (Si) is the second most abundant element in Earth's crust (27.

Principles of Microeconomics 7
The market for pizza has the following demand and supply schedules: Price Quantity Demanded Quantity Supplied $4 135 pizzas 26 pizzas 5 104 53 6 81 81 7 68 98 8 53 110 9 39 121 a.Graph the demand and supply curves. What is the equilibrium price and quantity in this market? b.If the actual pri

Campbell Biology 10
SCIENTIFIC INQUIRY Female silkworm moths (Bombyx mori) attract males by emitting chemical signals that spread through the air. A male hundreds of meters away can detect these molecules and fly toward their source. The sensory organs responsible for this behavior are the comblike antennae visible in t

Chemistry: The Central Science 12
The reaction between reactant \(A\) (blue spheres) and reactant \(B\) (red spheres) is shown in the following diagram: Based on this diagram, which equation best describes the reaction? [Section 3.1] (a) \(\mathrm{A}_{2}+\mathrm{B} \longrightarrow \mathrm{A}_{2} \mathrm{~B}\) (b) \(\mathr

Quantitative Chemical Analysis 8
In a coulometric Karl Fischer water analysis, 25.00 mL of pure dry methanol required 4.23 C to generate enough I2 to react with the residual H2O in the methanol. A suspension of 0.847 6 g of finely ground polymeric material in 25.00 mL of the same dry methanol required 63.16 C. Find the weight percen

Urban Economics 8
Opportunity Cost and Offi ce Bid-Rent Curve Using Table 64 and Figure 63 as a starting point, suppose the opportunity cost of travel by offi ce workers increases by 25 percent. a. At a distance of fi ve blocks, travel cost 5 ; the willingness to pay for land 5 ; the bid rent per hectare 5 . b. Draw t

Chemistry for today : general, organic, and biochemistry 9
Write formulas for the following compounds: a. barium hydroxide b. magnesium sulfite c. calcium carbonate d. ammonium sulfate e. lithium hydrogen carbonate