Question

How much does 7.2 moles of ammonium dichromate weigh? (NH4)2Cr2O7

189

likes
947 views

Answer to a math question How much does 7.2 moles of ammonium dichromate weigh? (NH4)2Cr2O7

Expert avatar
Gerhard
4.5
92 Answers
Para calcular el peso de 7.2 moles de dicromato de amonio, necesitamos conocer la masa molar de dicha sustancia.

La fórmula química del dicromato de amonio es (NH4)2Cr2O7. Para calcular la masa molar, debemos sumar las masas atómicas de cada elemento multiplicadas por su respectivo subíndice.

La masa atómica del nitrógeno (N) es aproximadamente 14.01 g/mol, la del hidrógeno (H) es aproximadamente 1.01 g/mol, la del cromo (Cr) es aproximadamente 52.00 g/mol, y la del oxígeno (O) es aproximadamente 16.00 g/mol.

Por lo tanto, podemos calcular la masa molar del dicromato de amonio de la siguiente manera:

Masa molar = (2 * masa del nitrógeno) + (8 * masa del hidrógeno) + (2 * masa del cromo) + (7 * masa del oxígeno)

Masa molar = (2 * 14.01 g/mol) + (8 * 1.01 g/mol) + (2 * 52.00 g/mol) + (7 * 16.00 g/mol)

Masa molar = 28.02 g/mol + 8.08 g/mol + 104.00 g/mol + 112.00 g/mol

Masa molar = 252.10 g/mol

Ahora que tenemos la masa molar del dicromato de amonio, podemos calcular el peso de 7.2 moles multiplicando la masa molar por el número de moles:

Peso = 7.2 moles * 252.10 g/mol

Peso = 1813.92 g

Por lo tanto, 7.2 moles de dicromato de amonio pesan 1813.92 gramos.

\textbf{Answer:} El peso de 7.2 moles de dicromato de amonio es de 1813.92 gramos.

Frequently asked questions (FAQs)
Math question: "Factorize the expression x^2 + 7x + 12."
+
What is the probability of getting exactly 3 heads in 5 fair coin tosses?
+
What is the Pythagorean theorem and how is it used to find the length of a side in a right triangle?
+
New questions in Mathematics
A normally distributed population has a mean of 118 with a standard deviation of 18. What score separates the lowest 72% of the distribution from the rest of the scores?
Consider numbers from 1 to 2023. We want to delete 3 consecutive, so that the avarage of the left numbers is a whole number. How do we do that
1. Suppose we have a good whose quantity supplied changed from 100 to 120 units when the price increased from $10 to $12 per unit. Compute the price elasticity of supply using the midpoint method
9b^2-6b-5
A job takes 9 workers 92 hours to finish. How many hours would it take 5 workers to complete the same job?
The actual length of an object is 1.3 m . If the blueprint uses a scale of 1 : 12 , what is the length of the line on the drawing?
how many arrangement can be made of 4 letters chosen from the 8 letters of the world ABBSOLUTE
4. Show that if n is any integer, then n^2 3n 5 is an odd integer
If the midpoint of point A on the x=3 line and point B on the y=-2 line is C(-2,0), what is the sum of the ordinate of point A and the abscissa of point B?
Pedro had 80% of the amount needed to buy a game. Of this amount, you spent 15% on a watch and therefore, you will need to add another R$640.00 to purchase this game. Is the value of the game?
3. A rock is dropped from a height of 16 ft. It is determined that its height (in feet) above ground t seconds later (for 0≤t≤3) is given by s(t)=-2t2 + 16. Find the average velocity of the rock over [0.2,0.21] time interval.
The following table shows the frequency of care for some animal species in a center specializing in veterinary dentistry. Species % Dog 52.8 Cat 19.2 Chinchilla 14.4 Marmoset 6.2 Consider that the center only serves 10 animals per week. For a given week, what is the probability that at least two are not dogs? ATTENTION: Provide the answer to exactly FOUR decimal places
A machine produces 255 bolts in 24 minutes. At the same rate, how many bolts would be produced in 40 minutes?
9.25=2pi r solve for r
Take the limit of (sin(x-4))/(tan(x^2 - 16) as x approaches 4.
Determine the Linear function whose graph passes through the points (6, -2) and has slope 3.
2x-5-x+2=5x-11
The area bounded by the curve y=ln(x) and the lines x=1 and x=4 above the x−axis is
Sarah is lining a square tray with 1 inch square tiles. the side length of the tray is 9 inches. How many tiles does Sarah need?
The domain of the function f(x)=x+7x2−144 is (−∞,), ( ,), and ( , ∞).