# Yahoo Web Search

1. ### Assume you seal 1 .0 g of water (see the figure below) in an evacuated 100 .-mL flask. ?

...be: P = nRT / V = (( 1 .0 g H2O) / (18.01532 g H2O... mol) x (70 + 273) K / (0. 100 L) = 11874 mmHg So...200 mmHg. (But I do not trust this graph for water since it ...

2 Answers · Science & Mathematics · 10/09/2020

2. ### How do you prepare? ?

... than in the stripping buffer. So, you need 1 /10 of the final volume, or 10 mL of that stock in the final..., use M1V1 = M2V2 0.5 (V1) = 100 (0.075)  V1 = 15 mL So, you will use 15...

1 Answers · Science & Mathematics · 17/09/2020

3. ### Sodium hydrogencarbonate lab, how do I figure out the actual weight with the given information?

...(g) + CO2(g).. .. 80°C < T < 100 °C .. (2) 1 Na2CO3(s) ----> Na2O(s) + CO2(g).. ... ... .... ... .... .T...

2 Answers · Science & Mathematics · 18/09/2020

4. ### Need quick answer! Due tomorrow... Dry mass for Chemistry lab?

...stoichiometry mass of CaCO3 is 1 .838g moles of CaCO3 = 1 .838g / 100 .0 g/ mol = 0.01838 moles from the nett equation we see the moles of...

1 Answers · Science & Mathematics · 13/09/2020

5. ### Chemistry Problem?

let me show you the light .. ( 1 ) write chemical equations  assume temp < 850°C ....... https://en.wikipedia...+mass CO2 = what mass NaHCO3 .. (4) mass % = mass NaHCO3 / mass total * 100 %

1 Answers · Science & Mathematics · 03/09/2020

6. ### Chemistry help: Hydrants and percentages. Why is my answer incorrect ?

...t work. So here is how you should approach this: 1 . The loss of mass of the sample after heating...5. Dividing (mass NaCl / mass sample) X 100 give you % NaCl in the sample. (Also, the word...

2 Answers · Science & Mathematics · 20/09/2020

7. ### Chemistry HW Help?

... 100  =  0.277x mass of (NH4)2HPO4 = x*12.7/ 100 = 0.127x mass of nitrogen in CH4N2O = 28/60 * 0.675x... mass of nitrogen in KNO3       = 14/101. 1 * 0.277x               = 0.04x grams mass of nitrogen...

1 Answers · Science & Mathematics · 16/09/2020