Chemistry

How many sig figs should my answer have if it gives 14g, 100C, 0C

Is it 1 because 100 degrees Celsius has 1 sig fig?-One, because either the 1 in 100 degrees Celsius is significant and the trailing zeroes are not, or because the 0 in 0 degrees Celsius is significant

Why must a given measurement always be reported to the correct number of significant numbers

Because if you forget to write down as many digits as you can know from the measurement, you are denying the data recipient access to all the available data. BUT, if you write down TOO MANY DIGITS,

Suppose you stir a little baking soda then stir until clear how do u prove that the clear water is a solution

not a compound-Distillation - Evaporate the water and you are left with the compound material proving it was a compound.

What is [pOH] and [H3O+]

[OH-] = 9.1 x 10^-2 pH = 12 [pOH] = _____ ? [H3O+] = _____ ? Please show your work. Thanks!-[OH-] = 9.1 x 10^-2 pOH = - log of [9.1 x 10^-2] so pOH = 1.04 p.s. since the pH + pOH = 14,.... the p

Chemistry question! Plz Help!

What is the condensed structural formula for 1-butanol??-CH3CH3CH3CH2OH (all numbers subscript).

HELP ON A CHEMISTRY QUESTION

The temperature of a solvent remains fixed over time during the phase change from liquid to solid. However, the temperature of a solution continually decreases over time during the phase change from l

How many oxygen moles are in 3O2

Assuming youre asking for moles of Oxygen atoms, rather than Gaseous Oxygen, theres 6. 6 moles of Oxygen atoms. 3 moles of gaseous Oxygen.

Which has the lowest # of sig figs, 100, 14, 4.184

I am supposed to multiply them and the answer is supposed to have the smallest amount of sig figs.-100. The zeros dont count, so theres just one sig fig- the one. 14 has two, and 4.184 has four.

Proper way to write a Lewis Dot Diagram

Chem quiz tomorrow. & my teacher constantly fails to assist me when I ask for help. Look it up in the book... hopefully someone can give me a betterexplanation. I know the second ring of the atom can

Which has the smaller 4th ionization energy, Cl or Al

Please explain the answer, as I dont understand what 4th ionization energy is.-Ionization energy is basically the energy it takes for an atom to loose an electron. The 2nd IE is the energy it takes to

How do you convert wavelength of 688nm into hertz

with the correct amount of significant figures :)-c = ν× λor λ = c/νν = c/ λ c = speed of light = 2.998×10^8 m s-1 ν = c/ λ=(2.998×10^8)/(688×10^-9)=4.36×10^14 s^-1(Hertz)

How much 50% wt/wt NaOH do I need to make 1 liter of 0.100 M solution

How much 50% wt/wt NaOH (in mL) do I need to make 1 liter of 0.100 M solution? Thanks a tonne! :)-The molecular weight of NaOH is 40 so if you make 1 liter of 0.1 Molar solution you will need 0.1 mol

Calculate the number of grams of excess reactant

Ammonia rapidly reacts with hydrogen chloride, making ammonium chloride.Calculate the number of grams of excess reactant when 7.40 g of NH3 reacts with 4.00 g of HCl. I really need help with this pro

How to make two solutions have the same initial temperature

If their are two solutions that are not at the same initial temperature, what can you/ should you do in order to make it so they have the same initial temperature?-Place the containers the solutins ar

Chemistry homework help

1. what is the total number of atoms in a molecule of each of the following compounds?a.)stearic acid , CH3(CH2)16COOH What does the (CH2) part mean? since its in parenthesis? and what does COOH sta