Questions tagged 'Calculations'
26 questions
Dec 31, 2024
Number of O atoms in 5.25×10−3mol Al(NO3)3?
I would appreciate assistance with calculating the number of oxygen (O) atoms in 5.25 × 10−3 moles of Aluminum Nitrate, Al(NO₃)₃. If possible, I would like to have this information before midnight. Th...
Dec 31, 2024
Three gases (8.00 g of methane, ch4, 18.0 g of ethane, c2h6, and an unknown amount of propane, c3h8) were added to the same 10.0-l
Three gases—8.00 g of methane (CH₄), 18.0 g of ethane (C₂H₆), and an unknown amount of propane (C₃H₈)—were introduced into a single 10.0-L container. At a temperature of 23.0 °C, the total pressure in...
How many post-it notes will you need to cover a car?
I want to prank my friend and I’m torn between two ideas: either covering his car with Post-it notes or wrapping it in cling film. I have a few questions: 1) How many Post-it notes do you think I’ll n...
when do sky divers use decimals ?
When do skydivers use decimals in their calculations?
Dec 17, 2024
help please? How many grams of ethyl alcohol will result? and How many grams of ethyl alcohol will result?
Ethylene gas (C2H4) reacts with water at high temperatures to yield ethyl alcohol (C2H6O). I need assistance with the following questions: How many grams of ethylene are required to react with 0.130...
Dec 04, 2024
How to solve for moles when given molecules?
A thimble of water contains (4.0 \times 10^{21}) molecules. How do I calculate the number of moles of H₂O from this information? The options provided are: 1. (2.4 \times 10^{23}) 2. (6.6 \times 10^{-2...
Calculate the molality of the solution. (assume a density of 1.08 g/ml for the solution.)an aqueous nacl solution is made using 140
Calculate the molality of the solution using 140 g of NaCl diluted to a total volume of 1.20 L of solution. Assume the density of the solution is 1.08 g/mL.
Calculate the max power in kW that can be produced using the standard enthalpy of the reaction?
An experimental spacecraft consumes a specialized fuel at a rate of 210 L/min. The density of this fuel is 0.690 g/mL, and the standard enthalpy of combustion is –39.8 kJ/g. Calculate the maximum powe...
How many milliseconds are in a year?
Could someone please assist me in calculating the number of milliseconds in a year? Thank you!
Amphetamine(C9H13N) is a weak base with a pKb of 4.2.?
To calculate the pH of a solution containing amphetamine (C9H13N) at a concentration of 240 mg/L, given that it is a weak base with a pKb of 4.2, please provide the necessary calculations.