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How many grams of nitric acid can be prepared from the reaction of 138 grams of NO2 with 54 grams of H2O according to the equation: 3NO2 + H2O -> 2HNO3 + NO
n(NO2) = 138/46 = 3 moln(H2O) = 54/18 = 3 molwater in excess, therefore:n(HNO3) = n(NO2)*2/3 = 2 molm(HNO3) = 2*63 = 126 g
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Identify of an alkane gas that has a density of 1.16 g/l measured at pressure of 0.984 atm and temperature of 37C?
PV = nRT n = PV/RT n = m/Mw m/Mw = PV/RT Mw = mRT/PV = 1.16*8.31*(273+37)/(1*(101.3*0.984) = 30 CxHy 30/12=2..... x=2 30-2*12=6 y=6 Answer: C2H6
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A car averages 32.5 mi/gallons. What is its rate in m/mL? (1 gallon = 4 quarts, 1 quart = 0.946 L)
1 mi / gallons . =0.425 m / ml .32.5 mi / gallons . = ( 32.5 × 0.425 ) m / ml .= 13.81 m / ml .
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When 40 grams of ammonium nitrate explode 14 grams of nitrogen and 8 grams of oxygen are formed. How many grams of water are formed?
You can calculate this by such reaction: NH₄NO₃ --gt; N₂ + frac12;O₂ + 2H₂O ==gt; 2NH₄NO₃ --gt; 2N₂ + O₂ + 4H₂O The law of conservation of mass solves this...
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A body of density 9.0 grams per centimeter cube(g/cm3) appears to have a mass of 27.0 grams in a liquid of density 1.2 grams per centimeter cube(g/cm3), what is the volume of the solid?
ρ=m/V V=m/ρ V(solid)=27.0/9.0=3 cm3
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How many pounds does 1.0000 quart of mercury weigh ?
The density of mercury is 13.6 g/ml. Two steps by inspection 1 qt = 0.25 gallons, 13.6 g/mL = 13.6 kg/L0.25 gallon x 3.785411784 L/gallon x 13.6 kg/L x 1...
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In 25 grams of a 7.5% by mass solutions of CaSO4
1.) how many grams of solute are present
2.) how many grams of solvent are present
Solution 1.Wt. Of solute in gm. = (25*7.5)/100= 1.875 gm.2. Since wt. of solution = wt. of solute + wt. of solventWt. of solution = 100 gm.Wt. of solvent in...
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One liter of Homogenized milk has a mass of 1032g. What is the Density of the Milk in grams per milliliter? ANS: 1.032 g/ml
One liter of Homogenized milk has a mass of 1032g .1000 ml of Homogenized milk has a mass of 1032g .So , 1 ml of Homogenized milk has a mass...
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When 23 grams of methane gas combine with 42 grams of oxygen, 37 grams of water form, plus carbon dioxide. What mass of carbon dioxide is produced?
CH4(g) + 2 O2 (g) = CO2(g) + 2 H2O (g)1 : 2 : 1 : 223g : 42g : ? : 37g Therefore : ( 23/42) =0.5 moles 1...
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The blood plasma volume totals of 2.8-3.2 qt in an average human.
a. A quart is a unit of mass
b. A quart is a unit of length
c. A quart is a unit of time
d. A quart is a unit of volume
c. A quart is a unit of time
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