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tywower
 one year ago
Which of the following samples has the greatest mass?
1.4 mol Na
1.02 × 1024 atoms Na
23 g Na
6.02 × 1023 atoms Na
tywower
 one year ago
Which of the following samples has the greatest mass? 1.4 mol Na 1.02 × 1024 atoms Na 23 g Na 6.02 × 1023 atoms Na

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JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Can you convert all of these to grams?

tywower
 one year ago
Best ResponseYou've already chosen the best response.023 g Na im giving u free medals sorry

tywower
 one year ago
Best ResponseYou've already chosen the best response.0lol i figure out the answer after i post lol

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Haha, thanks, but I don't get 23 g to be the answer.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Because I get one of the other options to be more mass when converted to grams.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Do you know how to convert from moles to mass?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Ok, let me show you. We use the molar mass. Do you know what the molar mass of Na is?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Right. And that number is the number of grams in 1 mole of Na

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1We need to do a conversion that cancels out the unit of mol and goes to g dw:1434382435002:dw

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Then we fill in the numbersdw:1434382521787:dw

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1And multiply the fractions.dw:1434382560516:dw

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Cool, so is that more than 23?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1:) So that is the highest so far. But we need to check the other two options too.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1The amounts given in atoms, we have to do two steps. First converting to moles, then to grams.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Do you know how many atoms are in 1 mol?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Great! So can you use a similar conversion to convert to moles?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Cool. how many moles do you get for B?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Let me set it up for you.dw:1434383025321:dw

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Where do you think the numbers go?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Right. :) And?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Yep, great! So, can you find the number of moles now?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1What do you get?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Did you go straight to grams? :)

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1So, can you find the grams for D?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1:) So, which one has the most mass?

tywower
 one year ago
Best ResponseYou've already chosen the best response.0An atom is determined to contain 17 protons, 18 electrons, and 18 neutrons. What are the mass number and charge of this atom or ion? mass number: 36, charge: 1 mass number: 35, charge: +1 mass number: 35, charge: 1 mass number: 36, charge: neutral

tywower
 one year ago
Best ResponseYou've already chosen the best response.0this one is confusing me

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Ok, what does the mass number mean?

tywower
 one year ago
Best ResponseYou've already chosen the best response.0the total number of protons and neutrons

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Good, so what do you get for the mass number?

tywower
 one year ago
Best ResponseYou've already chosen the best response.035 so that eliminates a and d

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Good. And do you have any ideas on how to find the charge?

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1Protons have a +1 charge and electrons have 1 charge.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1So, since we have one more electrons, that gives us a 1 overall charge.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1You're welcome :)

tywower
 one year ago
Best ResponseYou've already chosen the best response.0What types of questions can be answered through science and what questions are beyond the boundaries of science? Be specific and give examples to support your answer.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.1What do you think?
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