Search & Filtering
Calculate ∆H for the reaction 2C(s) + H2(g) → C2H2(g) using the following data:
H_2(g) +1/2 O_(2(g))→H_2 O_((l)) ∆H=-286 kJ
C_((s))+O_(2(g))→〖CO〗_(2(g)) ∆H=-394 kJ
C_2 H_2(g) +5/2 O_(2(g))→2〖CO〗_(2(g))+H_2 O_((l)) ∆H=-1 300 kJ
Calculate the change in the internal energy of a piston expanding against a pressure of 0.75 atm 10.3 L to 22.4 L. In the process, 1 030 J of heat is absorbed.
Consider a 10.0-g CO2 as an ideal gas, expanding isothermally and reversibly from a volume of 4 L to 12 L at 303 K. What is the work done by CO2? Calculate q and ∆E.
Samples of aluminum and of iron, both 1 kg in mass, absorb 9.5 kJ. Which substance would yield a larger change in temperature? Consider the specific heat capacities of aluminum (0.89 J/g-K) and iron (0.45 J/g-K).
Calculate the amount of heat released by a given reaction, causing the temperature of 500 mL water (density = 1 g/mL) to increase by 278.35 K (5.2°C)
How many moles does 56.7g of SrlO contain? (SrlO molar mass equals 230.5 g/mole)
𝒄𝒂𝒍𝒄𝒖𝒍𝒂𝒕𝒆 𝒕𝒉𝒆 𝒎𝒂𝒔𝒔 𝒐𝒇 𝒔𝒐𝒅𝒊𝒖𝒎 2 𝒄𝒉𝒍𝒐𝒓𝒊𝒅𝒆 𝒏𝒆𝒆𝒅𝒆𝒅 𝒊𝒇 𝒂 𝒔𝒐𝒍𝒖𝒕𝒊𝒐𝒏 𝒄𝒐𝒏𝒕𝒂𝒊𝒏𝒊𝒏𝒈 2 𝒈𝒓𝒂𝒎 𝒐𝒇 𝑯𝒈(no2)2 was added to sodium 2 chloride solution
what is the molarity of a solution containing 408grams of NaOH in 2 Liters of Water? (Round to the 2nd decimal)
what is the concentration of 20.50 mL of NaOH if this was neutralized with 20mL of 0.150M HCI in the reaction?
how do you calculate enthalpy change using Hess's Law?
What volume of 2M NaOH will react with 34g of FeCI3?
What is the number of moles of NaCl in 3 litres of 3 M solution
