# chimistry

12 results

### chimistry

in chimistry what is aq

### chimistry

what distinguishes one element from another?

### chimistry

what is the volume of .020 mol ne at .505kpa and 27.0'C

### chimistry

how many grams of CaCl2 are produced from 3.24 mol Cl2

### lab chimistry

Why we must mix the compound with MnO4?

### chimistry

hvorfor løsligheten av natriumsaltet til salsyre vann

### chimistry

The molar heat of fusion of lead (Pb) is 1.140 kcal/mol. How much heat must be added to 97.0 g of solid lead at its melting point in order for it to completely melt? A 1.44 kJ B 10.18 kJ C 12.48 kJ D 25.04 kJ

### chimistry

What is the solubility of calcium sulfate (CaSO4) in 0.30 M aqueous sodium sulfate (Na2SO4)? (Ksp of calcium sulfate = 2.0 10–5 M) 1.7 10–5 M 6.7 10–5 M 1.4 10–3 M 1.5 10–3 M

### Chimistry

A piece of metal (75 g at 98.0°C) was dropped in water (95 g at 22.0°C) and the final temperature was measured to be 31.2°C. If the specific heat of water is 4.18 J/g°C. What is the heat capacity of the metal?

### chimistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.82 kg m-3. Under these conditions the total surface area of the balloon is 0.39 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1. Calculate the rate of ...

### chimistry

Sulfur vapor is analyzed by photoelectron spectroscopy (PES). Measurements determine that photoelectrons associated with the 1st ionization energy of sulfur move with de Broglie wavelength λ=3.591 A˚. What is the maximum wavelength (in meters) of radiation capable of...

### chimistry

You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 100.0 ppm and is initially uniform through the thickness of the steel. The atmosphere of...### Pages

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