Answer:
i think i had the same question as you, I put "A car driving on a straight freeway at 60 miles per hour" which was correct for me.
Explanation:
Answer:
Pretty sure the answer is B
51.3 gram of water should form if 32.5 g of NH₃ react with enough oxygen.
<h3>How to find the Number of moles ?</h3>
To calculate the number of moles use the formula
Number of moles = 
= 
= 1.9 mol
4NH₃ + 5O₂ → 4NO + 6H₂O
4 mol of NH₃ react with oxygen to given 6 mole of water.
So 1.9 mol of NH₃ produces = 
= 2.85 mol of water
Mass of water = Molar Mass of water × Number of moles of water
= 18 × 2.85
= 51.3 gram
Thus from the above conclusion we can say that 51.3 gram of water should form if 32.5 g of NH₃ react with enough oxygen.
Learn more about the Moles here: brainly.com/question/15356425
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Answer:
There are 55, 49 g of CaCl2
Explanation:
We calculate the weight of 1 mol of CaCl2:
Weight CaCl2=Weight Ca + 2x(Weight Cl)= 40,08g+ 2x 35, 45g=110,98 g/mol
1000ml-----2 mol of CaCl2
250ml------x= (250 ml x 2 mol of CaCl2)/1000ml= 0,5 mol of CaCl2
1mol -----110,98g
0,5mol ---x= (0,5molx110,98g)/1 mol= <em>55,49 g</em>