Answer: 82.8 grams of 
are there in 
molecules of
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
1 mole of weighs = 72 g
1.15 moles of weighs =
Thus 82.8 grams of are there in molecules of
Answer:
250,000
Explanation:
250 large calories × (1000 small calories)/(1 large calorie)
= 250,000 small calories
Answer:
22.35 g of (NH₄)₃PO₄ will be produced by 7.5 g of ammonia.
Explanation:
H₃PO₄ + 3NH₃ → (NH₄)₃PO₄
H₃PO₄: 98 g/mol
NH₃: 17 g/mol
(NH₄)₃PO₄: 149 g/mol
17 g NH₃ _________ 1 mol
7.5 g NH₃ __________ x
x = 0.44 mol NH₃
3 mol NH₃ __________ 1 mol (NH₄)₃PO₄
0.44 mol NH₃ _________ y
y = 0.15 mol (NH₄)₃PO₄
1 mol (NH₄)₃PO₄ ____________ 149 g
0.15 mol (NH₄)₃PO₄ __________ z
z = 22.35 g (NH₄)₃PO₄
A theory of chemical combination, first stated by John Dalton in 1803. It involves the following postulates: (1) Elements consist of indivisible small particles (atoms). (2) All atoms of the same element are identical; different elements have different types of atom. (3) Atoms can neither be created nor destroyed.
(Brainliest me)
Lithium, sodium, potassium, rubidium, cesium, and francium
