ron is obtained by mining iron ore out of the ground. Magnesium, however, is obtained from seawater, which contains magnesium at a concentration of about 54 millimolar.
How many liters of seawater must be processed in order to obtain 1.0 kg of magnesium?
ron is obtained by mining iron ore out of the ground. Magnesium, however, is obtained from...
1. To get iron out of iron ore (the stuff that actually comes out of the ground), you need to heat it with charcoal (C). The reaction is: 2(Fe2O3) + C .......... 4 Fe + 3 (CO2) How many kilograms of iron would you produce by processing 15.00 kg of iron ore? 2. Burning octene is: C8H16 + 12 (O2) ......... 8 (CO2) + 8 (H2O) How many grams of O2 would you require to burn 2.00 moles of octene?...
To get iron out of iron ore (the stuff that actually comes out of the ground), you need to heat it with charcoal (C). The reaction is: 2(Fe2O3) + 3C .......... 4 Fe + 3 (CO2) How many moles of carbon would you need to process 2.37 moles of iron ore?
Phosphorus is obtained primarily from ores containing calcium phosphate. If a particular ore contains 55.6 % calcium phosphate, what minimum mass of the ore must be processed to obtain 1.00 kg of phosphorus? Express your answer with the appropriate units. m=
Phosphorus is obtained primarily from ores containing calcium phosphate. If a particular ore contains 46.9% calcium phosphate, what minimum mass of the ore must be processed to obtain 4.47 kg of phosphorus? Express your answer numerically in terms of kilograms.
19) Iron is produced from its one by the reactions 2 C O 2 Fe:O ) CO 2 es 3COAR) How many moles of Ol) are needed to produce 1 mole of Fe(s)? a) 1/2 mole o 1/4 moto 1 mole O d) 3/2 moleo 20) Iron (1) sulfate reacts with potassium hydroxide in aqueous solution to form a precipitate. The net lonic equation for this reaction is: a) Fel. 50. Feso, 2 50, SO. c)Fe +20 Feco ). d)...
Please work out 3 clearly and with units. Thanks!
1. A 10-g bullet travels vertically upwards at 1000 m/s, then strikes and passes through a 2.0-kg block initially at rest. The bullet emerges from the block with a speed of 400 m/s because it transfers momentum to the block. (a) How much momentum did the block gain? (b) How fast is the block now moving, and what is its kinetic energy? (c) Using energy considerations only, to what maximum height...
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please can you answer 4 questions .. thanks for help
Factoes hich Infuence The Rates Of Resction Name Date Prelab Question Lab Instructor Lab Section a. List the potential ehemical hazards in this experiment and tell how you wi handle them in order to make this experiment safe for you and others in the laboratory b. List the potential procedural hazards in this experiment and tell how you will handle them in order to make this experiment safe for...
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uploaded everything that was given. Where would I find the
experiemental values?
Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...
1) Continuous random variables are obtained from data that can be measured rather than counted. A) True B) False 2) Discrete variables have values that can be measured. A) True B) False 3) Determine whether the random variable described is discrete or continuous. The number of minutes you must wait in line at the grocery store A) continuous B) discrete 4) Determine whether the random variable described is discrete or continuous. The total value of a set of coins A)...
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need help figuring out #5.35, 5.37, 5.45, 5.57, and 5.71
Documents Pearson Updad Assgrmerti Eimiting. Nos |UNC 217 A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the strato sphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 x 10 atm, respectively. Calculate the final volume of the balloon 5.35 The temperature of 2.5 L of a gas initially at...