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find the average molar mass

A hydrate of zinc chlorate, Zn(ClO3)2 .xH2O(s) contains 21.5% zinc by mass. Find the value of x.What I've done: Molar mass of
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2. asked by Anonymous
3. 9,193 views
I need to find the average molar mass of an unknown element. The atomic mass is 120; the mass numbers of isotopes are 295, 296,
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2. asked by Joe
3. 613 views
I need to find the average molar mass of an unknown element. The atomic mass is 120; the mass numbers of isotopes are 295, 296,
1. 1 answer
2. asked by Joe
3. 504 views
How do I calculate the average Z molar mass, 1/n (Summation) of n*M given this data:(Ave molar mass, mass of sample): (7.5,9.6)
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2. asked by tom
3. 515 views
The human body is said to contain approximately 50.0 grams of DNA in the entire body. If the number of nucleotides in one strand
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2. asked by Merp
3. 528 views
The human body is said to contain approximately 50.0 grams of DNA in the entire body. If the number of nucleotides in ONE STRAND
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2. asked by jenna
3. 509 views
The human body is said to contain approximately 50.0 grams of DNA in the entire body. If the number of nucleotides in ONE STRAND
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2. asked by KS
3. 585 views
The human body is said to contain approximately 50.0 grams of DNA in the entire body. If the number of nucleotides in ONE STRAND
1. 0 answers
2. asked by jenna
3. 530 views
A 1.50-g mixture of the solid salts Na2SO4(molar mass 142.04 g/mol) and Pb(NO3)2(molar mass 331.20 g/mol) forms an aqueous
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2. asked by Anwa
3. 1,502 views
An experiment shows that a 114 mL gas sample has a mass of 0.167 g at a pressure of 721 mm Hg and a temperature of 32°C. What
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2. asked by hannah
3. 475 views