What is the molar mass (gram formula mass) for the compound sodium thiosulfate, #Na_2S_2O_3#?

Answer 1

I get #158.13 \ "g/mol"#.

To calculate the molar mass of sodium thiosulfate, #Na_2S_2O_3#, we need to find all the molar masses of the elements, and add them together.
#Na# has a molar mass of #23 \ "g/mol"#. So, #Na_2# will have a molar mass of #23 \ "g/mol"*2=46 \ "g/mol"#.
#S# has a molar mass of #32.065 \ "g/mol"#. So, #S_2# will have a molar mass of #32.065 \ "g/mol"*2=64.13 \ "g/mol"#.
#O# has a molar mass of #16 \ "g/mol"#. Therefore, ozone, or #O_3#, will have a molar mass of #16 \ "g/mol"*3=48 \ "g/mol"#.
Adding all the molar mass together, we find that the molar mass of sodium thiosulfate #(Na_2S_2O_3)# is:
#46 \ "g/mol"+64.13 \ "g/mol"+48 \ "g/mol"#
#=158.13 \ "g/mol"#.
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Answer 2

To calculate the molar mass of sodium thiosulfate (Na2S2O3), add the atomic masses of all the atoms in the compound:

2(Na) + 2(S) + 3(O) = 2(22.99 g/mol) + 2(32.07 g/mol) + 3(16.00 g/mol) = 46.00 g/mol + 64.14 g/mol + 48.00 g/mol = 158.14 g/mol

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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