Chemistry

A 697 mL NaCl solution is diluted to a volume of 1.12 L and a concentration of 3.00 M.

What was the initial concentration?-M1V1 = M2V2 M1 x 0.697L = 3M x 1.12L M1 = 4.82M-1.12 x 3.00 = 0.697 x Answer Answer = 4.82 M

Differences between a light bulb and laserlight

Can you give me the differences please? (comparison chart?) Thank you!-imagine a a tap at the center of a garden. to irrigate you can either open the tap and let the water flow which will go in all d

Can some one PLZ help me with Chemistry

Benzene = Boiling point (80.1 °C) Kb (2.53 °C/m)Freezing Point (5.5°C)Kf(5.12 °C/m) 1.49 m of naphthalene (C10H8) in benzene What is the Boiling point and Freezing?-Freezing point elevation and boilin

What are dispersion forces

electrostatic forces of attraction between temporary dipoles in molecules, caused by the movement of electrons.

) What is the volume of oxygen gas at STP from the decomposition of 10.8 g of mercuric oxide

(216.59 g/mol)? __HgO(s)→__Hg(l)+__O2(g *PLEASE SHOW STEPS-Not too bad. Take it slowly. Balance the equation first: __HgO(s) → __Hg(l) + __O2(g) 2HgO(s) → 2Hg(l) + O2(g) Now, turn the 10.8 g of me

Why is it the boiling point of sea water more than that of pure water

Sea water contains salt, and other impurities which cause an elevation in its boiling point.-Due to the dissolved solutes. When a solute is added to a solvent, the vapor pressure of the solvent (abov

Simple Gas Laws, anyone

A snorkeler with a lung capacity of 6.4L inhales a lungful of air at the surface, where the pressure is 1.0atm. The snorkeler then descends to a depth of 22m, where the pressure increases to 3.2atm.

Two metals that crystallize to bcc, fcc and hcp unit cell

Hexagonal: Magnesium, Titanium, Cobalt, Zinc Body centered cubic: Iron (but if you heat and quench it you can lock it in fcc), Chromium, Manganese, Tungsten Face centered cubic: Nickel, Copper, Silv

CHEMISTRY: Ksp Related concept question, plz help

Pure water is saturated with PbCl2. In this saturated solution: 1. [Pb2+] = [Cl−] 2. [Pb2+] [Cl−] = Ksp 3. 2 [Cl−] = [Pb2+] 4. Ksp = [Pb2+] 5. [Pb2+] = 0.5 [Cl−] **the answer is definitely not choic

Why does ionic radius of an element not affect lattice enthalpy

I cam across a question in an IB HL chemistry paper which reads: Which of the following statements help(s) to explain why the lattice enthalpy value for lithium fluoride (+1022 kj/mol) is less than t

How many elements are there periodic table currently, and correct

got a poster, unsure if its correct-As of 2011, the table contains 118 chemical elements whose discoveries have been confirmed. The first 94 are found naturally on Earth, and the rest are synthetic el

CHEMISTRY: Ksp related questions, very confused, plz help me

1.) Calculate the solubility product constant for silver iodide, which has a molar solubility of 1.2 × 10−8 mol/L. ----I thought the answer would be 2.4 x 10-8 but thats not even one of the answer cho

What is oxidation? Choose the best answer.

A) the loss of electrons B) the reaction with oxygen C) the reduction of oxygen D) the gaining of electrons E) the addition of an electron to the valence shell-A oxidation is when an element looses e

IS CHEMISTRY A DIFFICULT SUBJECT

I mean. I have never taken Chemistry in my life (dont ask) and Im going to be taking CHEM 101 during the summer which is for 10 weeks instead of the usual 15 weeks. Im at my first semester of college

What is the stereochemistry of free radical mechanism

The reaction of n-butane with Br2 under light forms 2-bromobutane in the form of (A) R isomer (B) S isomer (C) 1:1 mixture of R and S isomer (D) 2:3 mixture of R and S isomer-You should get a 1:1