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
94 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: "What is the result of dividing 2/3 by 4/5?"
+
What is the vertex form equation of a parabola with a vertex at (3, -2)?
+
Math question: Find the limit as x approaches 1 of (2x^2 + 3x - 5)/(x - 1).
+
New questions in Mathematics
A particular employee arrives at work sometime between 8:00 a.m. and 8:50 a.m. Based on past experience the company has determined that the employee is equally likely to arrive at any time between 8:00 a.m. and 8:50 a.m. Find the probability that the employee will arrive between 8:05 a.m. and 8:40 a.m. Round your answer to four decimal places, if necessary.
How much volume of water in MegaLiters (ML) is required to irrigate 30 Hectare crop area with depth of 20mm?
Find an arc length parameterization of the curve that has the same orientation as the given curve and for which the reference point corresponds to t=0. Use an arc length s as a parameter. r(t) = 3(e^t) cos (t)i + 3(e^t)sin(t)j; 0<=t<=(3.14/2)
A hotel in the Algarve had to offer 1 week of vacation to one of its employees as an Easter gift in a random choice. It is known that 80 people work in this hotel unit, 41 of whom are Portuguese and 39 are foreign nationals. There are 14 Portuguese men and 23 foreign women. Using what you know about conditional probability, check the probability that the gift was offered to a Portuguese citizen, knowing that it was a woman.
I) Find the directional derivative of 𝑓(𝑥, 𝑦) = 𝑥 sin 𝑦 at (1,0) in the direction of the unit vector that make an angle of 𝜋/4 with positive 𝑥-axis.
Supposed 60% of the register voters in a country or democrat. If a sample of 793 voters is selected, what is the probability that the sample proportion of Democrats will be greater than 64% round your answer to four decimal places
To make brine, José buys 1 kg of salt and pays 12 pesos. If he buys 4 kg, they charge him 48 pesos, but for 100 pesos they sell him 9 kg. What is the constant of proportionality?
In a store, a person carries 14 kilos of rice and 28 kilos of flour. In what ratio are the kilos found? (Remember to simplify until you reach an irreducible fraction)
The mean life of a television set is 119 months with a standard deviation of 13 months. If a sample of 67 televisions is randomly selected, what is the probability that the sample mean would be less than 121 months? Round your answer to four decimal places
A force of 750 pounds compresses a spring 3 inches from its natural length, which is 15 inches. What will be the work done to compress it 3 inches more?
The durability of a tire of a certain brand is a Normal random variable with an average of 64,000 km and a standard deviation of 9,000 km. Assuming independence between tires, what is the probability that the 4 tires on a car will last more than 58,000 km?
15/5+7-5
Solve : 15/16 divide 12/8 =x/y
Equine infectious anemia (EIA) is considered the main infectious disease in Brazilian equine farming, for which there is no effective vaccine or treatment. It is caused by a retrovirus of the genus Lentivirus, which affects horses, donkeys and mules and is transmitted in nature mainly by hematophagous insects of the genus Tabanidae. Researchers analyzed the records of 9,439 equids from Acre, submitted to the agar gel immunodiffusion test (AGID) for equine infectious anemia (EIA), between 1986 and 1996. Of these, 6199 tested positive for equine infectious anemia (EIA) . Knowing that the age of AIE-positive horses follows a Normal distribution with a mean of 5 years and a standard deviation of 1.5 years, determine the expected number of AIE-positive horses in the Acre sample that will be aged less than or equal to 3 years. ATTENTION: Provide the answer to exactly FOUR decimal places.
Subjects are randomly assigned to one of three specialties for a 3-month rotation, and at the end of that rotation, they are given a test that measures moral development. The scores are listed below, where a high score represents high moral development and a low score represents low moral development. Orthopedics Pediatrics Oncology 77 63 54 84 93 97 66 97 76 44 76 65 59 45 91 40 88 68 28 74 54 M = 56.86 M = 76.57 M = 72.14 What is Nt?
2.380× (1+0.05) / 0.95−0.05
Determine the kinetic energy of a baseball whose mass is 100 grams and has a speed of 30 m/s.
Let G be the center of gravity of triangle ABC. We draw through A a parallel to BC on which we take a point D so that DG⊥BG. If the area of the quadrilateral AGBD is equal to s, show that AC·BD≥2·s.
Beren spent 60% of the money in her piggy bank, and Ceren spent 7% of the money in her piggy bank to buy a joint gift for Deren, totaling 90 TL. In the end, it was observed that the remaining amounts in Ceren and Beren's piggy banks were equal. Therefore, what was the total amount of money that Beren and Ceren had initially? A) 120 B) 130 C) 150 D) 160 E) 180
the length of the fenced in area is to be 5 ft greater than the width and the total amount of fencing to be used is 89 ft find the width and length