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## My Most Active Categories

Chemistry Uncategorized Science

# How much stronger (in percentage) is vinegar with 9 acetic acid content in comparison with a vinegar with 5 acetic acid content?

Thank you! I would like to make homemade all purpose cleaner and the recipe calls for a 1 cup of vinegar with 5% acetic acid content mixed with a 1 cup of water. I only have (MORE)

# How do you balance KNO3 plus H2CO3 K2CO3 plus HNO3?

2KNO3 + H2CO3 ==> K2CO3 + 2HNO3 would be the balanced equation but since all of the species are ionizable and soluble, this reaction won't actually take place.
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# What is the percentage by mass of different elements in methane?

Methane is composed of only carbon (C) and hydrogen (H). It has the formula of CH4. Total molar mass = 12 + 4 = 16.Mass % Carbon = 12/16 (x100%) = 75%Mass % Hydrogen = 4/16 (MORE)

# How many atoms are in 0.0156 mol of Cs?

0.0156 moles x 6.02x10^23 atoms/mole = 9.39x10^21 atoms
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# Which type of particle has a charge of plus 1 and a mass number of 1?

That would be a proton.
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# What is is the molality of 3.00 of NaCL and 1.50kg?

m = moles/kg = 3.00/1.50 = 2.00 molal
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# What is the balanced ionic equation for when ammonium phosphate react with sodium hydroxide?

There is no reaction between these, because all species are soluble.
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In Golf

# Can you name some golf club manufacturers?

Sure. Just a few would be Callaway, Titleist, Ping, TaylorMade and Wilson. There are many, many others.
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# What is an empirical formula c4h8 c2h4 ch c2h2?

The empirical formula for C4H8 would be CH2. For C2H4 it would be CH2 and for C2H2 it would be CH.
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In Science

# What is the chemical which reacts with starch to form a black colour?

That would be iodine
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In Science

# How do you prepare 5 N HNO3 Solution?

You put 5 moles of HNO3 in a total volume of 1 liter of water.
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# What pair of elements do you expect to be most similar?

Elements in the same group tend to have similar properties.
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