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muminat
2 years ago
6

Find the no of moles of ca in 8g of ca​

Chemistry
1 answer:
Tom [10]2 years ago
4 0

Answer:

Thus,there are 0.2 mole in 8 g of calcium.

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Which of the following properties of a protein is least likely to be affected by changes in pH? Tertiary structure Primary struc
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7 0
3 years ago
element m is a metal and its chloride has the formula mcl2. to which group of the periodic table does m most likely belong
Triss [41]
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3 0
2 years ago
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An unknown diprotic acid (H2A) requires 44.391 mL of 0.111 M NaOH to completely neutralize a 0.58 g sample. Calculate the approx
Anna [14]

Answer:

M=235.42g/mol

Explanation:

Hello!

In this case, given this is an acid-base neutralization and we are considering a diprotic acid, we can write the following mole-mole relationship:

2n_{acid}=n_{base}

It means that the moles of acid can be computed given the volume and concentration of NaOH:

n_{acid}=\frac{M_{base}V_{base}}{2} =\frac{0.044391L*0.111mol/L}{2} \\\\n_{acid}=2.46x10^{-4}mol

It means that the approximate molar mass of the acid is:

M=\frac{m_{acid}}{n_{acid}} \\\\M=\frac{m_{acid}}{n_{acid}} =\frac{0.58g}{2.46x10^{-3}mol}\\\\M=235.42g/mol

Best regards!

5 0
2 years ago
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