<span>Baking a cake is an example of making something where the ingredients must be in fixed ratios. Recipes call for specific ratios of ingredients in order to cook properly, and when a recipe for a cake is modified to feed greater or fewer people the ratio remains the same as the original recipe.</span>
Answer:
3.75 atm
Explanation:
Volume remains constant, so we can use <em>Gay-Lussac’s Law</em>.
<em>p</em>₁/<em>T</em>₁ = <em>p</em>₂/<em>T</em>₂ Multiply both sides by <em>T</em>₁
<em>p</em>₁ = <em>p</em>₂ × <em>T</em>₁/<em>T</em>₂
<em>p</em>₁ = ?; <em>T</em>₁ = 299 K
<em>p</em>₂ = 7.77 atm; <em>T</em>₂ = 620 K Insert the values
<em>p</em>₁ = 7.77 × 299/620 Do the operations
<em>p</em>₁ = 3.75 atm
Answer:
As with the hydrogen-ion concentration, the concentration of the hydroxide ion can be expressed logarithmically by the pOH. The pOH of a solution is the negative logarithm of the hydroxide-ion concentration. pOH=−log[OH−] The pH of a solution can be related to the pOH.
Answer: the bottom one is wave the one above is electromagnetic and the one above is transverse
Explanation:
Answer:
4.88 M
Explanation:
M = number moles/Volume (L)
MM AlCl3 = 133.34 g/mol
Volume = 500 mL = 0.5 L
number moles = mass/MM = 325.4/133.34 = 2.44 moles AlCl3
M = 2.44/0.5 = 4.88 M
