Chemistry

Which law allows you to calculate the amount of gas present

Ideal gas law. PV=nRT P= pressure V=Volume of container n= mols of gas R= ideal gas constant (make sure you use the right unit for this, coordinate with the pressure unit.) T= temperature in KELVIN

Molality question on chemistry

Calculate the volume ( L ) of the solute acetonitrileand the mass ( kg ) of the solvent C6H6 that should be combined to produce 8.81 kg of a solution that is 0.396 m acetonitrile. work involved would

What makes certain alcohols weak

alkyl groups make them weak, the lesser the number of carbon atoms in the alkyl group, it becomes comfortable.!

THE MOLE CONCEPT?! i need help....

How many water molecules are contained in 0.15 g of tin (IV) chloride pentahydrate? I need proper working out for this? and pleaseee explain step by step cause im a beginner. Thank you so much!-350.

Solving Kilowatt hours in electrolysis equation

I cant figure out how to do this problem How many kilowatt-hours of electricity are used to produce 5.50 kg of magnesium in the electrolysis of molten MgCl2 with an applied emf of 5.00 V? thanks wil

Classifying simple biomolecules

Classify Ribose, Calciferol, glutamine, and DNA as: Nucleic Acid Carbohydrate Lipid Amino acid or Vitamin will pick best answer-Ribose is a carbohydrate Calciferol is Vitamin D, so its a vitamin Glu

Why is sodium hydroxide slippery on your fingers

Sodium hydroxide is a base that, like many bases, feels slippery when it’s on your fingers. Explain why.-Sodium Hydroxide reacts with the oils in your skin to make soap and after its done with that it

Which element can...

A) Reduce Pb2+ to Pb but cannot reduce Ni2+ to Ni. Explain. B) Oxidize I- to I2 but cannot oxidize Br- to Br2. Explain. Need a fast response please!-A). Tin (Sn) B). Silver (Ag) and Mercury (Hg) R

4 or more differences between DNA and RNA

biochem question. thanks-DNA has a deoxyribose sugar while RNA has a ribose sugar, DNAs bases are A,T,C,G while RNAs bases are A,U,C,G, DNA is a double helix while RNA is a single helix and DNA is pri

Anode and cathode half-reactions for a chlor-alkali plant.

a)anode and cathode half-reactions for a chlor-alkali plant. b) why is it unwise to simulate the chlor- alkali c) what common acid is often manufactured as a byproduct at chlor-alkali plants.-a) Satur

In the equation (chemistry help)

2k+2H20 ---> 2KOH + H2 what is the oxidizing agent and oxidizing product what is the reducing agent and reducing product-The oxidizing agent is the reactant that is already oxidized and will reduce

How do you solve titration problems with the formula MaVa = MbVb

how would i answer this A 25 ml solution of 0.5 M NaOH is titrated until neutralized into a 50 ml sample of HCl. What was the concentration of the HCl?-Your unknown is Mb, so the equation gets transfo

Balancing half equations help

I need help with balancing half equations, identifying whether its reduction or oxidation problem.-Reduction: Gaining Electrons (Becoming More Negative Because Gaining Negative) Oxidation: Losing Elec

Which doesn't appear in nature

Au Na S which one doesnt appear by itself.. like.. without being in a compound.-Na - Sodium. As an alkaline metal it loves to form compounds, so much so that it refuses to be alone.-Na (Sodium--pure

CHEMISTRY: Atoms in excited states and electron configuration

Okay so I got this assignment that were supposed to study and prepare for our final with it. But i have a problem. I dont remember some of this stuff! Final Week is coming up and i need to understand