NEED HELP FAST!!!
Consider the given reaction.A(aq)+B(s)↽−−⇀C(aq)𝐾=9.40 Suppose 13.7 mol A reacts with excess B in 5.90 L of solution. Calculate the concentration of C at equilibrium.
help, I got a question wrong in chem class, and I can't figure it out, can someone please help?
How many calories are in 5 large eggs if one egg contains 6 grams of fat and 6 grams of protein?Carbohydrate = 4kcal/gFat= 9kcal/gProtein = 4kcal/gAnswer: a) 400 calb) 4 calc) 80 cald) none of the... more
Gen Chem Question
A 1.800 g sample of solid phenol (C6H5OH) was burned in a bomb calorimeter whose total heat capacity is 7.854 kJ/°C. The temperature of the calorimeter plus contents increases from 21.36 °C to... more
Calculate the volume of N2 that results when 0.138 L of the gas is heated from 308.0 K to 351.0 K at 3.00 atm.
Use inductive reasoning to predict the most probable next number in each list.4, 9, 19, 34, 54, 79, ?
Consider the unbalanced reaction NiS2 + O2 = NiO + SO2 When 10.7 g of NiS2 reacts with 6.11 g of O2, 4.86 g of NiO are obtained. The theoretical yield of NiO is____, the limiting reactant is _____... more
Explain why the following ground-state electron configurations are not possible: a. 1s22s32p3 b. 1s22s22p33s6 c. 1s22s22p73s23p8 d. 1s22s22p63s23p14s23d14
A certain volume of a gas had a pressure of 800 torr at a temperature of -40 degrees C. What was the original volume if the volume at STP is now 450.0 cm^3?
the correct answer is 365 cm^3. I just need an explanation. Thank you!
Calculate the pH of a mixture of 25 cm3 of 0.100 mol dm–3 propanoic acid and 15 cm3 of 0.050 mol dm–3 sodium hydroxide. (pKa propanoic acid = 4.87)
If an ideal gas has a pressure of 5.67 atm, a temperature of 55.94 ∘C, and a volume of 99.39 L, how many moles of gas are in the sample? 𝑛= mol
If 3.84 mol of an ideal gas has a pressure of 2.28 atm and a volume of 65.25 L, what is the temperature of the sample in degrees Celsius?
A flexible container at an initial volume of 3.10 L contains 4.51 mol of gas. More gas is then added to the container until it reaches a final volume of 15.7 L.
Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.
A regression equation was computed to be y = 5 + 3x. What is the purpose of a regression equation? what does the 3 represent in this model ? what does the 5 represent in this model? if the model... more
Soft drinks usually have a pH of 3.1. What is the [H+] concentration in a soft drink?
the the answer in the correct number of significant figures.
An element has a half life of about 20 days. How much of a 3000 gram sample is left after 100 days?
If 7.50 mol of NH₃ and 8.20 mol of O₂ react in the following reaction, how many moles of H₂O will be formed? 4 NH₃ (g) + 5 O₂ (g) → 4 NO (g) + 6 H₂O (g)
7. The pH of blood plasma from a patient was found to be 7.6, a life-threatening situation. Calculate the ratio [HCO3-]/[H2CO3] in this sample of blood plasma.
7. The pH of blood plasma from a patient was found to be 7.6, a life-threatening situation. Calculate the ratio [HCO3-]/[H2CO3] in this sample of blood plasma. (Ka of H2CO3, carbonic acid, is... more
calculating volume of co2
what is the volume of carbon dioxide gas formed at s.t.p when 2.15 g of liquid hexane is completely burnt in the air. (H=1, C=12, 1 mole of gas occupies a volume of 22.4dm3 at s.t.p)
Please choose the write answer
The POH of a soft drink is 10.6. What is its hydronium ion concentration?a) 1.0*10^-7 Mb)2.5*10^3 Mc)5.0*10^-4d)4.0*10^-4 M
Please choose the write answer
The Ka for Formic acid is 1.8*10^-4 what is the Kb of its conjugate base?a)5.6*10^-11b)5.6*10^11c)1.8*10^-4d)1.8*10^10