High-carbon steel has 1.70% carbon dissolved in iron. What mass of carbon is present in a high-carbon steel knife blade...
High-carbon steel has 1.70% carbon dissolved in iron. What mass of carbon is present in a high-carbon steel knife blade that has a mass of 114 g? Give your answer to three significant figures.
Answer in (g C)
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High-carbon steel has 1.70% carbon dissolved in iron. What mass of carbon is present in a high-carbon steel knife blade...
A blacksmith forging a 930.0-g knife blade drops the steel blade, initially at 670.0°C, into a...
A blacksmith forging a 930.0-g knife blade drops the steel blade, initially at 670.0°C, into a water trough containing 38.0 kg of water at 23.0°C. Assuming none of the water boils away or is lost from the trough and no energy is lost to the surrounding air, what is the final temperature of the water-knife blade system? Assume Csteel = 450 J/(kg . °C).
A blacksmith forging a 945.0-g knife blade drops the steel blade, initially at 690.0°C, into a...
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Review Part A A lawn mower has a flat, rod-shaped steel blade that rotates about its...
Review Part A A lawn mower has a flat, rod-shaped steel blade that rotates about its center. The mass of the blade is 0.65 kg and its length is 0.55 m. You may want to review (Pages 314 - 318). What is the rotational energy of the blade at its operating angular speed of 3530 rpm ? Express your answer using two significant figures. VO A O O ? Submit Request Answer Part B If all of the rotational kinetic...
A 22cm -diameter circular saw blade has a mass of 0.87kg , distributed uniformly as in...
A 22cm -diameter circular saw blade has a mass of 0.87kg , distributed uniformly as in a disk Part A What is its rotational kinetic energy at 3500rpm ? Express your answer using two significant figures. Part B What average power must be applied to bring the blade from rest to 3500rpm in 3.5s ? Express your answer using two significant figures.
3a. Calculate the required mass of an unknown nonelectrolyte (ℳ = 125.7998 g/mol) dissolved in 12...
3a. Calculate the required mass of an unknown nonelectrolyte (ℳ = 125.7998 g/mol) dissolved in 129.7 g of solvent that gives a solution that freezes at 1.85 °C. The freezing point of the pure solvent is 4.44 °C and its Kf value is 1.87 °C/m. Report your answer to TWO places past the decimal. 3b. Calculate the molar mass (in g/mol) of an unknown nonelectrolyte if 0.613 g dissolved in 250.3 mL of water at 19.47 °C has an osmotic...
Carbon dissolved in iron will be present as which of the following type(s) of crystalline imperfection...
Carbon dissolved in iron will be present as which of the following type(s) of crystalline imperfection a Second phase only b Point defect only c Point defect and second phase d Neither point defect nor second phase
What is the mass, in grams, of 1.50 mol of iron (III) sulfate? Express your answer...
What is the mass, in grams, of 1.50 mol of iron (III) sulfate? Express your answer using three significant figures. How many moles of ammonium ions are in 6.935 g of ammonium carbonate? Express your answer using four significant figures. What is the mass, in grams, of 1.40 times 10^21 molecules of aspirin, C_9H_8O_4? Express your answer using three significant figures.
3a. Calculate the molar mass (in g/mol) of an unknown 1:1 electrolyte if 0.482 g dissolved...
3a. Calculate the molar mass (in g/mol) of an unknown 1:1 electrolyte if 0.482 g dissolved in 223.1 mL of water at 74.75 °C has an osmotic pressure of 54.4 mmHg. R = 0.082058 L⋅atm⋅mol−1⋅K−1. 1.00 atm = 760 mmHg. Report your answer to THREE significant figures. 3b. Calculate the required mass of an unknown nonelectrolyte (ℳ = 131.5599 g/mol) dissolved in 140.1 g of solvent that gives a solution that boils at 36.04 °C. The boiling point of the...
Iron (Il) oxide reacts with carbon monoxide according to the equation: Fe2Os (s) +3CO(g) *2Fe(s) +3CO2(9)...
Iron (Il) oxide reacts with carbon monoxide according to the equation: Fe2Os (s) +3CO(g) *2Fe(s) +3CO2(9) A reaction mixture initially contains 22.80 g FezOs and 14.00 g CO. Once the reaction has occurred as completely as possible, what mass (in g) of the excess reactant remains? Express your answer to three significant figures.
Part A The density of iron is 7.87 g/mL. What is the mass of a 2.00...
Part A The density of iron is 7.87 g/mL. What is the mass of a 2.00 cm x 4.00 cm x 1.00 cm block of iron? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) alue Units mass = Submit
A blacksmith forging a 930.0-g knife blade drops the steel blade, initially at 670.0°C, into a water trough containing 38.0 kg of water at 23.0°C. Assuming none of the water boils away or is lost from the trough and no energy is lost to the surrounding air, what is the final temperature of the water-knife blade system? Assume Csteel = 450 J/(kg . °C).
Review Part A A lawn mower has a flat, rod-shaped steel blade that rotates about its center. The mass of the blade is 0.65 kg and its length is 0.55 m. You may want to review (Pages 314 - 318). What is the rotational energy of the blade at its operating angular speed of 3530 rpm ? Express your answer using two significant figures. VO A O O ? Submit Request Answer Part B If all of the rotational kinetic...
What is the mass, in grams, of 1.50 mol of iron (III) sulfate? Express your answer using three significant figures. How many moles of ammonium ions are in 6.935 g of ammonium carbonate? Express your answer using four significant figures. What is the mass, in grams, of 1.40 times 10^21 molecules of aspirin, C_9H_8O_4? Express your answer using three significant figures.
Iron (Il) oxide reacts with carbon monoxide according to the equation: Fe2Os (s) +3CO(g) *2Fe(s) +3CO2(9) A reaction mixture initially contains 22.80 g FezOs and 14.00 g CO. Once the reaction has occurred as completely as possible, what mass (in g) of the excess reactant remains? Express your answer to three significant figures.
Part A The density of iron is 7.87 g/mL. What is the mass of a 2.00 cm x 4.00 cm x 1.00 cm block of iron? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) alue Units mass = Submit
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