Chemistry concepts and calculations
117302 questions • Page 372 / 2347
A 5.00-wt% aqueous sulfuric acid solution (p =1.03 g/ml) flows through a 45-m lo
A 5.00-wt% aqueous sulfuric acid solution (p =1.03 g/ml) flows through a 45-m long pipe with a 6.0 cm diameter at a rate of 87 L/min What is the molarity of sulfuric acid in the s…
A 5.000 g piece of cobalt metal is added to a 106.5 mL of 2.05 M gold(I) nitrate
A 5.000 g piece of cobalt metal is added to a 106.5 mL of 2.05 M gold(I) nitrate. A reaction occurs resulting in the formation of gold metal and cobalt(III) nitrate in solution. a…
A 5.000g sample of pesticide was decomposed with metallic sodium in alcohol and
A 5.000g sample of pesticide was decomposed with metallic sodium in alcohol and the liberated chloride ion was precipitated as AgCl. Express the results of this analysis as percen…
A 5.00mL sample of blood was treated with trichloroacetic acid to precipitate th
A 5.00mL sample of blood was treated with trichloroacetic acid to precipitate the proteins. After centrifugation, the resulting solution was brought to p^H 3.0 and extracted with …
A 5.00wt% aqueous sulfuric acid solution(p=1,03g/mL) flows through a 45-m long p
A 5.00wt% aqueous sulfuric acid solution(p=1,03g/mL) flows through a 45-m long pipe with a 6.0cm diameter at a rate of 87L/min a) what is the molarity of sulfuric acid in the solu…
A 5.05g samplers a compound is dissolved in enough water to form 100.0mL of solu
A 5.05g samplers a compound is dissolved in enough water to form 100.0mL of solution. This solution has an osmosis pressure of 0.03289 atm at 25 middot C. If it is assume that eac…
A 5.07 g sample of water is introduced into a 0.668 L flask containing some C 2
A 5.07 g sample of water is introduced into a 0.668 L flask containing some C2H2 gas. The flask is heated to 233.53 °C at which temperature all of the water is converted to the ga…
A 5.079 g sample of a solid, weak, monoprotic acid is used to make a 100.0 mL so
A 5.079 g sample of a solid, weak, monoprotic acid is used to make a 100.0 mL solution. 26.00 mL of the resulting acid solution is then titrated with 0.09454 M NaOH. The pH after …
A 5.079 g sample of a solid, weak, monoprotic acid is used to make a 100.0 mL so
A 5.079 g sample of a solid, weak, monoprotic acid is used to make a 100.0 mL solution. 26.00 mL of the resulting acid solution is then titrated with 0.09454 M NaOH. The pH after …
A 5.09 m solution of the solute water dissolved in the solventethanol is availab
A 5.09 m solution of the solute water dissolved in the solventethanol is available. Calculate the mass ( kg ) of the solutionthat must be taken to obtain 0.6350 kg of water. Molar…
A 5.0L reaction flask initially contains 0.030 mol sulfuryl chloride at 177°C. S
A 5.0L reaction flask initially contains 0.030 mol sulfuryl chloride at 177°C. Sulfur dioxide and chlorine form: SO2Cl2(g) <---> SO2(g) +Cl2(g). After equilibrium is establi…
A 5.0mL volume of 0.00200 M SCN- is mixed with5.0mL of 0.0200 M Fe^3+ to form th
A 5.0mL volume of 0.00200 M SCN- is mixed with5.0mL of 0.0200 M Fe^3+ to form the blood-redFeNCS^2+ complex. The equilibrium molar concentration ofthe FeNCS^2+ determined from a c…
A 5.10 g sample of a white powder identified as cocaine is analyzed in a laborat
A 5.10 g sample of a white powder identified as cocaine is analyzed in a laboratory. The entire sample dissolves in water. Upon adding sodium hydroxide to the dissolved sample, co…
A 5.20 g sample of trans-1,2-diethylcyclopropane (formula C 7 H 14 ), is mixed w
A 5.20 g sample of trans-1,2-diethylcyclopropane (formula C7H14), is mixed with 35.67 atm of O2 in a 7.38×10-1 L combustion chamber at 204.18 °C. The combustion reaction to CO2 an…
A 5.20-L sample of SiH4 gas at 356 mm Hg pressure and 25 °C is allowed to react
A 5.20-L sample of SiH4 gas at 356 mm Hg pressure and 25 °C is allowed to react with O2 gas. What volume of O2 gas, in liters, is required for complete reaction if the oxygen has …
A 5.329 g sample of a solid, weak, monoprotic acid is used to make a 100.0 mL so
A 5.329 g sample of a solid, weak, monoprotic acid is used to make a 100.0 mL solution. 34.00 mL of the resulting acid solution is then titrated with 0.09506 M NaOH. The pH after …
A 5.344-g sample of a solid, weak, monoprotic acid is used to make 100.0 mL of s
A 5.344-g sample of a solid, weak, monoprotic acid is used to make 100.0 mL of solution. 15.0 mL of this solution was titrated with 0.08158-M NaOH. The pH after the addition of 25…
A 5.5 g sample of a substance contains only carbon and oxygen. Carbon makes up 3
A 5.5 g sample of a substance contains only carbon and oxygen. Carbon makes up 35% of the mass of the substance. The rest is made of oxygen. You are asked to determine the mass of…
A 5.7 x 10-2 mg sample of a protein is dissolved in water to make 0.25 ml of sol
A 5.7 x 10-2 mg sample of a protein is dissolved in water to make 0.25 ml of solution. The osmotic pressure of the solution is 0.56 torr at 25C. What is the molar mass of the prot…
A 5.7 x 10-2 mg sample of a protein is dissolved in water to make 0.25 ml of sol
A 5.7 x 10-2 mg sample of a protein is dissolved in water to make 0.25 ml of solution. The osmotic pressure of the solution is 0.56 torr at 25C. What is the molar mass of the prot…
A 5.75-g quantity of a diprotic acid was dissolvedin water andmade up to exactly
A 5.75-g quantity of a diprotic acid was dissolvedin water andmade up to exactly 275 mL. Calculate the molar mass of the acid if25.0 mL of the solution required 11.0 mL of 1.00 M …
A 50 ?M solution of chromophore A had an absorbance of 0.861 at 405 nm and 0.21
A 50 ?M solution of chromophore A had an absorbance of 0.861 at 405 nm and 0.21 at 610 nm. Chromophore B (50 ?M) had an absorbance of 0.352 at 405 mn and 1.26 at 610 nm. An unknow…
A 50 M solution of chromophore A had an absorbance of 0.861 at 405 nm and 0.21 a
A 50 M solution of chromophore A had an absorbance of 0.861 at 405 nm and 0.21 at 610 nm. Chromophore B (50 M) had an absorbance of 0.352 at 405 mn and 1.26 at 610 nm. An unknown …
A 50 gram sample of delicious pork rinds is placed in an open, constant pressure
A 50 gram sample of delicious pork rinds is placed in an open, constant pressure calorimeter that contains 3000 grams of water. The temperature of the water increases by 47C when …
A 50 mL crude extract of skeletal muscle contains 32 mg of protein per mL. Ten m
A 50 mL crude extract of skeletal muscle contains 32 mg of protein per mL. Ten microliter of the extract catalyzes a reaction at a rate of 0.14 micromol product formed per minute.…
A 50 mL crude extract of skeletal muscle contains 32 mg of protein per mL. Ten m
A 50 mL crude extract of skeletal muscle contains 32 mg of protein per mL. Ten microliter of the extract catalyzes a reaction at a rate of 0.14 micromol product formed per minute.…
A 50 mL crude extract of skeletal muscle contains 32 mg of protein per mL. Ten m
A 50 mL crude extract of skeletal muscle contains 32 mg of protein per mL. Ten microliter of the extract catalyzes a reaction at a rate of 0.14 micromol product formed per minute.…
A 50 mL crude extract of skeletal muscle contains 32 mg of protein per mL. Ten m
A 50 mL crude extract of skeletal muscle contains 32 mg of protein per mL. Ten microliter of the extract catalyzes a reaction at a rate of 0.14 micromol product formed per minute.…
A 50 mL solution of 0.2 M Pb(NO3)2 is titrated with a 5 x 10^-2 M KI solution. T
A 50 mL solution of 0.2 M Pb(NO3)2 is titrated with a 5 x 10^-2 M KI solution. The first appearance of a yellow color that lasts for more than 30 seconds occurs after 14.50 mL KI …
A 50 mL solution of 0.2 M Pb(NO3)2 is titrated with a 5 x 10^-2 M KI solution. T
A 50 mL solution of 0.2 M Pb(NO3)2 is titrated with a 5 x 10^-2 M KI solution. The first appearance of a yellow color that lasts for more than 30 seconds occurs after 14.50 mL KI …
A 50 mM buffer of monosodium dihydrogen phosphate and disodium monohydrogen phos
A 50 mM buffer of monosodium dihydrogen phosphate and disodium monohydrogen phosphate at pH 7.0. The relevant pka is 6.8. What is the ionic strength? ( must figure out concentrati…
A 50 ml sample of ascorbic solution was titrated to until the first sign of perm
A 50 ml sample of ascorbic solution was titrated to until the first sign of permanent blue/purple colour with 7.706 mM potassium iodite.The titration volumes are shown below. Calc…
A 50 ml sample of ascorbic solution was titrated to until the first sign of perm
A 50 ml sample of ascorbic solution was titrated to until the first sign of permanent blue/purple colour with 7.706 mM potassium iodite.The titration volumes are shown below. Calc…
A 50 ml sample of ascorbic solution was titrated to until the first sign of perm
A 50 ml sample of ascorbic solution was titrated to until the first sign of permanent blue/purple colour with 7.706 mM potassium iodite.The titration volumes are shown below. Calc…
A 50 ml sample of ascorbic solution was titrated to until the first sign of perm
A 50 ml sample of ascorbic solution was titrated to until the first sign of permanent blue/purple colour with 7.706 mM potassium iodite.The titration volumes are shown below. Calc…
A 50 mole% benzene–toluene mixture is separated on a continuous distillation col
A 50 mole% benzene–toluene mixture is separated on a continuous distillation column. Requirements of the distillation: xD = 95 mole% benzene, xM = 7 mole% benzene. The following d…
A 50 uM solution of chromophore A had an absorbance of 0.861 at 405 nm and 0.21
A 50 uM solution of chromophore A had an absorbance of 0.861 at 405 nm and 0.21 at 610 nm. Chromophore B (50 uM) had an absorbance of 0.352 at 405 mn and 1.26 at 610 nm. An unknow…
A 50-cm long wire with a mass of 1 g and a tension of 440N passes across the ope
A 50-cm long wire with a mass of 1 g and a tension of 440N passes across the open top of a vertical tube partially filled with water. The wire, which is fixed at both ends, is plu…
A 50-mL sample of a solution containing an unknown weak base was titrated with 0
A 50-mL sample of a solution containing an unknown weak base was titrated with 0.1000 M HCl. The titration curve is shown below. a. Explain how you would use the titration curve t…
A 50-turn square coil with a cross-sectional area of 3.00 cm^2 has a resistance
A 50-turn square coil with a cross-sectional area of 3.00 cm^2 has a resistance of 18.0 Ohm. The plane of the coil is perpendicular to a uniform magnetic field of 1.00 T. The coil…
A 50.0 g piece of iron at 156 C is dropped into 20.0g H2O(l) at 90C in an open,
A 50.0 g piece of iron at 156 C is dropped into 20.0g H2O(l) at 90C in an open, thermally insulated container. How much water would you expect to vaporize, assuming no water splas…
A 50.0 g piece of iron at 156 C is dropped into 20.0g H2O(l) at 90C in an open,
A 50.0 g piece of iron at 156 C is dropped into 20.0g H2O(l) at 90C in an open, thermally insulated container. How much water would you expect to vaporize, assuming no water splas…
A 50.0 mL sample containing Cd^2+ and Mn^2+ was treated with 49.1 mL of 0.0400 M
A 50.0 mL sample containing Cd^2+ and Mn^2+ was treated with 49.1 mL of 0.0400 M EDTA. Titration of the excess unreacted EDTA required 10.0 mL of 0.0110 M Ca^2+. The Cd^2+ was dis…
A 50.0 mL sample of 0.50 M HCl is titrated with 0.50 M NaOH. After 28.0 mL of Na
A 50.0 mL sample of 0.50 M HCl is titrated with 0.50 M NaOH. After 28.0 mL of NaOH have been added to the acid, which of the following statements is true? A. The pH of the solutio…
A 50.0 mL sample of a 1.00 M solution of CuSO4 is mixed with 50.0 mL of 2.00 M K
A 50.0 mL sample of a 1.00 M solution of CuSO4 is mixed with 50.0 mL of 2.00 M KOH in a calorimeter. The temperature of both solutions was 20.2 degrees Celsius before mixing and 2…
A 50.0 mL sample of a gas was found to have a pressure of 1.0 atm at 25 degree C
A 50.0 mL sample of a gas was found to have a pressure of 1.0 atm at 25 degree C. What will be the new volume if the pressure is changed to 0.50 at constant temperature? The tempe…
A 50.0 mL sample of a gas was found to have a pressure of l.0 atm at 25 degree C
A 50.0 mL sample of a gas was found to have a pressure of l.0 atm at 25 degree C. What will be the new volume if the temperature is changed to 50 degree C at constant pressure? A …
A 50.0 mL sample of asorbic acid solution was titrated to until the first sign o
A 50.0 mL sample of asorbic acid solution was titrated to until the first sign of permanent blue/purple colour with 7.706 mM potassium iodate. The titration volumes are shown belo…
A 50.0 mL sample of asorbic acid solution was titrated to until the first sign o
A 50.0 mL sample of asorbic acid solution was titrated to until the first sign of permanent blue/purple colour with 7.706 mM potassium iodate. The titration volumes are shown belo…
A 50.0 mL sample of dilute HCl and 50.0 mL of dilute NaOH are at 19.50oC to begi
A 50.0 mL sample of dilute HCl and 50.0 mL of dilute NaOH are at 19.50oC to begin with. After mixing the two in a styrofoam cup, the temperature rises to 21.21oC. Calculate the he…
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