I'm not 100% sure but I think it's false
Citric acid is not harmful to the body
Answer:
We need 7.94 grams of Ca3(PO4)2
Explanation:
Step 1: Data given
Volume of Ca3(PO4)2 = 200 mL = 0.2 L
Molarity = 0.128 M
Molar mass of Ca3(PO4)2 = 310.18 g/mol
Step 2: Calculate moles of Ca3(PO4)2
Moles = molarity * volume
Moles Ca3(PO4)2 = 0.128 M * 0.2 L
Moles Ca3(PO4)2 = 0.0256 moles
Step 3: Calculate mass of Ca3(PO4)2
Mass Ca3(PO4)2 = moles Ca3(PO4)2 * molar massCa3(PO4)2
Mass Ca3(PO4)2 = 0.0256 moles * 310.18 g/mol
Mass Ca3(PO4)2 = 7.94 grams
We need 7.94 grams of Ca3(PO4)2
Answer:
6.38
Explanation:
line up the decimals
it helps to add another 0 to 2.6 so that you can align them better
1
2.60
+ 3.78
= 6.38
8 + 0 = 8
6 + 7 = 13; write 3 and carry the one over above the 2 in 2.60
2 + 3 + 1 = 6
I tried my best to show it through text.
Answer:
C₄H₉O₂
Explanation:
just count the amount of atoms present in the model.
