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# how do i find the moles and molar mass of an unknown solid acid?

A lab team places .0250g of an unknown solid acid in an Erlenmeyer flask. They neutralize the solid acid with 15.0ml of .210 M Na(OH)(aq). One mole of the acid reacts with one mole of the base. Calculate...

# neutral atom

as we know in oxygen there is 8 electron and 8 proton. oxygen  is neutral or not ? oxygen is ions or radicals if ions then why?

# What is Difference between Ions and radicals ? Nitrogen is ions or radicals !

What is Difference between Ions and radicals ? Nitrogen is ions or radicals !

# _Na + _H3PO4 ->

predict the product and balance the equation and name the type of reaction

# the speed of light and it relationship to frequency and wavelength the equation c = f?.

c=λ*f Measuring the Speed of Light With Chocolate  when microwaving. Distance between the hot spots ______________________________cm Wavelength _____________________________________________cm Wavelength...

# I don't understand the Van't Hoff factor..

I feel dumb because I don't understand it

# When 5g of a noneelectrolyte is added to 25g of water, the new freezing point is -2.5 C. What is the molecular mass of the unknown compound?

How do I start this problem?

# How do you tell what kind of bond a compound is

I've been given some homework in chemistry and I'm not sure how to tell if a compound or ion is an ionic, covalent or polar covalent bond. I also have to identify what kind of molecular shape a compound...

# that is the atomic number for uranium ?

i need to kno this answer as soon as possible

# At 1 atm, how much energy is required to heat 49.0 g of H2O(s) at –10.0 °C to H2O(g) at 129.0 °C?

I keep getting the worng answer

# How to find how many grams of nitrogen would fill 240 L

The problem says how many grams of nitrogen would fill a 240 L weather balloon to a pressure of 1.25 ATM at 29 degrees C

# mgo+co2=mgco3 what is the coefficents thanks

trying to balance unbalanced chemical reaction

# how o I draw a bond between O and H atoms and describe the polarity using symbols?

how do I draw a bond between O and H atoms and describe the polarity using symbols?

# explain steps for (using periodic table) for electron configuration regarding any nuetral atoms.

Please show me how to use the periodic table to write electron configuration/ orbital notation. Please show me everything I need to do. A link with videos is great for me... Show me how...

# I've been asked to state the function of PbCO3 in this reaction

In the separation of Ru, Ir, Os, Rh and Ag (now AgCl, after dissolution in Aqua regia), how does addition of PbCO3 and HNO3, bring out AgNO3

# how does and atom move around the nucleus?

in chemistry how does an arom move arund the nucleaus

# How does pH affect the initial rate of an enzyme-catalyzed reaction?

How does pH affect the initial rate of an enzyme-catalyzed reaction?

# what is the covalent bond for Nitogen and Fluride

WHAT IS THE Covalent bond for nitrogen and flouride with the work with

# Consider the titration of 300.0 mL of 0.500 M NH3 (Kb = 1.8 ×10-5) with 0.500 M HNO3. At the stoichiometric point of this titration the pH is?

Consider the titration of 300.0 mL of 0.500 M NH3 (Kb = 1.8 ×10-5) with 0.500 M HNO3. At the stoichiometric point of this titration the pH is?

# Is this true or not

1u=1.660*10-27kg  relative mass of the Li=7u=1 atom=1.660*10-27*7kg 7g=6.022*1023 atoms of Li 1kg=1000g 1.660*10-27*7kg=1.660*10-27*7*1000g 1g=(1.660*10-27*7)/(1.660*10-27*7000) 7g={(1...

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