Answers
Answer:
Mass of nitrogen dioxide produced = 4.6 g
Explanation:
Given data:
Volume of ammonia = 2.30 L
Mass of nitrogen dioxide produced = ?
Solution:
Chemical equation:
4NH₃ + 7O₂ → 4NO₂ + 6H₂O
Number of moles of ammonia at STP:
PV = nRT
n = PV/RT
n = 1 atm × 2.30 L / 0.0821 atm.L/K.mol × 273 K
n = 2.30 atm .L / 22.414 atm.L/mol
n = 0.1 mol
Now we will compare the moles of ammonia with nitrogen dioxide from balance chemical equation.
NH₃ : NO₂
4 : 4
0.1 : 0.1
Mass of NO₂:
Mass = number of moles × molar mass
Mass = 0.1 mol × 46 g/mol
Mass = 4.6 g
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(01.04 LC)What phase of matter has particles that are held together but can flow past eachother and takes the shape of a container, filling it from the bottom up? (3 points)1) Gas2) Liquid3) Plasma4) Solid
What would be the effect on the observed melting point of sample were poorly packed?
Answers
Answer:
2 HCl
Explanation:
Please kindly check attachment for the step by step solution of the given problem.
A. The more electronegative atom will form the positive pole of a
polar bond.
B. The more electronegative atom will form a nonpolar end of the
bond.
C. The more electronegative atom will make its end of the bond more
negative.
D. Electronegativity differences between the atoms will cancel out
bond polarity
Answers
The electronegativity affects the polarity of the bond between two atoms, as the more electronegative atom will make its end of the bond more negative. The correct option is C.
What is electronegativity?
Electronegativity is a charge that shows the ability of an element to gain electron pairs with other elements during bonding. Electronegativity is altered by the distance between the electron and the nuclei and the atomic number of the element.
Polarity is the state of the atomic body in which it has placed charges in an opposite way to the other atoms so that they can join together.
Thus, the correct option is C. The more electronegative atom will make its end of the bond more negative.
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Answer:
C. The more electronegative atom willl make its end of the
bond more negative
A P E X
Answers
The charge on the most stable ion of bromine is - 1.
What is an ion?
A charged atom or molecule is known as an ion. It has a charge because the atom or molecule's number of protons and electrons is not equal. Depending on whether an atom has more electrons than protons or fewer electrons than protons, an atom might become positively or negatively charged.
An atom is referred to be an ION when it is drawn to another atom due to an imbalance in its electron and proton numbers. A negative ion, or ANION, is an atom that contains more electrons than protons. A positive ion is one that has more protons than electrons.
Either there are too many or not enough electrons in a charged atom. Atoms in DS1 are heated to extremely high energy and unstable state. Then, a cathoderay in the thruster chamber discharges electrons, which strike the. Some of the electrons in the atoms in the chamber are stripped or knocked away when the electrons strike them. Plasma is created when a mass of charged, overheated atoms with free electrons.
Therefore, the charge on the most stable ion of bromine is - 1
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Br (Bromide)
-1 or Br- hope this helps
Answers
molecular formula of tetraethyl pyrophosphate is C8H20O7P2
Final answer:
The molecular formula for TEPP, or tetraethyl pyrophosphate, is approximately C4H10O6P2. This is calculated from the given element percentages and the given molecular mass.
Explanation:
The process of figuring out the molecular formula of TEPP, which stands for tetraethyl pyrophosphate, involves several steps. First, given the percentage composition of each element, we need to calculate the number of moles of each element in a 100g sample of the compound. For example, the 33.11% carbon equals 33.11g in a 100g sample. When divided by the molar mass of carbon (12.01 g/mole), this gives us approximately 2.76 moles. We do the same calculation for hydrogen, oxygen, and phosphorus to end up with a 'base' empirical formula of C2.76H6.96O3.86P1.36.
The next step is to figure out how to get the simplest whole number ratio. This can be done by dividing all the numbers by the smallest one, 1.36. This gives us C2.03H5.12O2.84: these are approximately 2, 5, 3, and 1, respectively, so the empirical formula of TEPP is approximately C2H5O3P.
We need to compare the empirical mass to the given molecular mass of 290.19 g/mol to determine whether the molecular formula is a multiple of the empirical. The empirical formula mass is about 144.99 g/mol. Therefore, the molecular formula of TEPP is approximately C4H10O6P2, as the molecular weight is approximately twice that of the empirical formula weight.
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Answers
Explanation:
Therefore the ratio is 3:3
B) 13 nM
C) 8.2 pM
D) 6.9 mM
Answers
Answer:
Binding affinity measures the strength of the interaction between a molecule to its ligand; it is expressed in terms of the equilibrium dissociation constant; and the higher value of this constant, the more weaker the binding between the molecule and the ligand is. On the other hand, small constans means that the interaction is tight. So "C" binds most tightly to the enzyme and "D" binds least tightly.