Thursday
May 23, 2013

Total # Posts: 31

Chem help
Radiowaves travel at the speed of light, which is 3 X 10^8 m/s. If a certain radio station broadcasts at a frequency of 1191 kHz, what is the wavelength of these waves? in meters? C=lamda V lamda= v/c so 1191/3e8 but it doesnt work..?

quick chem
Which of the following wavelengths of light has the highest energy? 1. 10 mm 2. 650 nm 3. 10 µm 4. 0.1 nm 5. 10 cm

Chemistry
MIke and Shayne reacted sodium chloride with silver nitrate as indicated in the reaction below: AgNO3(aq) + NaCl(aq) → AgCl (s) + NaNO3 (aq) The actual yield of their silver chloride was 0.365 g. According to their calculations, they should have theoretically obtained 0...

Chemistry
What is the largest amount of H2O in grams that can be formed when 6.10 g of H2 reacts with 6.10 g of O2, based on 2 H2 + O2 = 2 H2O

chemistry final step
If you have 24.98 grams of P and 74.99 grams of O2, how many moles of each compound do you have present? so I got .805 of P (limiting) and 2.343 O2 (excess) how do i do this step ? If you have 24.98 grams of P and 74.99 grams of O2, how many moles of each compound do you have ...

chem
How many moles of Ca(OH)2 are produced when 9.19 grams of CaH2 and 7.90 grams of H2O react ?

Chem hwk
In the balanced double replacement reaction of calcium chloride CaCl2 and aluminum sulfate Al2(SO4)3, how many grams of calcium sulfate can be produced if you start the reaction with 18.97 grams of calcium chloride and the reaction goes to completion?

math help
I'm sorry but you've posted a huge number of questions in the last 30 minutes...can't you try some of them yourself?

Mathh
19-3+x=5x 16+x=5x 16=4x x=4

chemchemchem
it doesn't. It just tells me to try again.

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