Well, since ammonia has the chemical formula NH3. Therefore the
relative atomic mass is 17 (14+(1)3). So 100 divided by 17, times 3
= 17.64705882352941g. I did this in order to figure out firstly,
how much the weight of 1 of the 17 nuclear particles, which make up
ammonia, would have to be present (in grams) for everything to be
in proportion to which would make 100g. Then by timesing it by 3
shows how much the 3 hydrogen atoms contributed in weight towards
the 100 grams. To prove that 17.64... is correct you can add
(100/(17) X (17-3).
The answer of this question is B. Tessa could use more plants and multiple trials
Explanation: In Tessa’s experiment, she has two sea grape plants and gives one pure water and the other a strong salt water solution. Tessa is trying to determine which amount of salt is the BEST for sea grape. With the experiment she set up however, she isn’t going to be able to determine which amount of salt is the BEST for the sea grape because she is only giving one sea grape plant salt. If Tessa were to have more sea grape plants and gave them all different amounts of salt, she could determine which amount of salt is best for the sea grape.
Hope this helped! If you have any questions about my answer feel free to comment on the question.
The maximum amount of Magnesium chloride that can be produced is 26.11 grams
calculation
find the moles of each reactant
that is
moles = mass/molar mass
moles of mg = 20 g/ 24.3 g/mol =0.617 moles
moles of HCl =20/36.5 =0.548 moles
write a balanced equation for reaction
Mg +2HCl =MgCl2 +H2
by use of mole ratio between Mg to MgCl2 which is 1:1 therefore the moles of MgCl2 = 0.617 moles
by use of mole ratio between HCl to MgCl2 which is 2:1 the moles of MgCl2 is therefore = 0.548 x1/2=0.274 moles
HCl is the limiting reagent therefore we use the moles MgCl2 derived from HCl, that is 0.274 moles
maximum mass is therefore = moles x molar mass
the molar mass of MgCl2 = 24.3 +(35.5 x2) =95.3 g/mol
maximum mass is therefore = 0.274 x95.3 = 26.11 grams
Answer:
Bicarbonate buffer system
Explanation:
The human body uses a bicarbonate buffer system to maintain blood pH at a reasonable level. Without it, we'd be dead.
The answer is 2C8H18 + 25O2 ⇒ 16CO2 + 18H2O<span />