Answer:
0.023 mol/(L*s).
Explanation:
Equation of the reaction:
2 D(g) + 3 E(g) + F(g) => 2 G(g) + H(g)
Using stoichiometry, 2 moles of D reacts with 3 moles of E and 1 mole of F to give the above products.
1 mole of D will react with 3/2 moles of E.
Delta[D]/delta t = 0.15 mol/L.s
Delta[E]/delta t = (3/2) * 0.15 =
= 0.023 mol/(L*s).
<h2>Answer:</h2>
<em>Third option is correct, 7.5 grams of CuI.</em>
<h3>Explanation:</h3>
Given data :
Mass of copper = 10 grams
Mass of iodine = 10 grams
theoretical yield of copper iodide = ?
Solution:
Moles of Cu: 10 / 63.5 = 0.157 mol.
Moles of I2: 10 / 254 = 0.039 mol.
Equation : 2Cu + I2 → 2CuI
Limiting reactant : I2
So Moles of CuI produced = 0.039 mol.
Mass of CuI = 0.039 mol * 190.5 = around 7.5g
Answer:they are used to generate sound waves in the ultrasonic range
Explanation:transducers are used to generate sound waves in the ultrasonic range ,by turning electrical energy into sound
Answer:- 0.0211 moles of air.
Solution:- This problem is based on an ideal gas law equation.
temperature, pressure and volume are given and asked to calculate the moles of the air. Standard pressure is 1.00 atm.
T = 15 + 273 = 288 K
P = 1.00 atm
V = 0.500 L
The ideal gas law equation is, PV = nRT
where R is the universal gas law constant and its value is 0.0821 atm.L per mol per K.
n is the number of moles and its what we are asked to calculate.
For n, the equation is rearranged as:
Let's plug in the values and do the calculations:
n = 0.0211 moles
So, there are 0.0211 moles of the air in the bottle.
The atomic number is 9 Ions have the same atomic number since atomic number signifies number of protons not electrons
