Heat required = M * C * (delta T)
= (Mass)*(Specific heat)*(temperature change)
= 250 * 4.18* 52 = 54340Joules.
I solve when unit of specific heat is (J/gC) if have another unit please tell me
The formal charge of an atom is the assigned charge to the atom. Carbon 1 and carbon 2 both have +4 charge, H has a charge of +1, while O is calculated by the equation -1=4+3+4+2x where -1 is the charge of CH3COO and x is the charge of each O atom. Charge of O atom is -6.
Answer:
1.510 × 10⁻¹³ g
Explanation:
Step 1: Given data
Number of atoms of vanadium: 1.000 × 10⁹ atoms
Step 2: Calculate the molecules of V₂O₅ that contain 1.000 × 10⁹ atoms of V
Each molecule of V₂O₅ has 2 atoms of V.
1.000 × 10⁹ atom V × (1 molecule V₂O₅/2 atom V) = 0.5000 × 10⁹ molecule V₂O₅
Step 3: Calculate the moles corresponding to 0.5000 × 10⁹ molecules of V₂O₅
We will use Avogadro's number: there are 6.022 × 10²³ molecules of V₂O₅ in 1 mole of V₂O₅.
0.5000 × 10⁹ molecule × (1 mol/6.022 × 10²³ molecule) = 8.303 × 10⁻¹⁶ mol
Step 4: Calculate the mass corresponding to 8.303 × 10⁻¹⁶ moles of V₂O₅
The molar mass of V₂O₅ is 181.88 g/mol.
8.303 × 10⁻¹⁶ mol × 181.88 g/mol = 1.510 × 10⁻¹³ g
Answer: T<span>
he molecule is polar and has polar bonds.Explanation: Bromine pentaiodide has polar bonds because the electronegativity of Bromine is greater than Iodine. Hence, Bromine slightly pulls the electron towards itself making the bond slightly polar.
Overall molecule is polar because there is no symmetry in the molecule. Below attached figure of Bromine pentaiodide shows that bromine contains a lone pair of electron. Due to this lone pair of electron the molecule becomes asymmetric.</span>
Answer:
The Pauli Exclusion Principle states that, in an atom or molecule, no two electrons can have the same four electronic quantum numbers. As an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.
Explanation:
The Pauli Exclusion Principle states that, in an atom or molecule, no two electrons can have the same four electronic quantum numbers. As an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.