What is the mass of cerrusite would contain 35g of lead?

Chemistry

1 answer:

slava [35]3 years ago

7 0

Answer:

i believe its 42

Explanation:

You might be interested in

1.93•100^18 shshshshshshs

AlekseyPX

1930000000000000000

1.93x100x10^16

5 0

3 years ago

At physiological ph, the ionized state of the amino (nh2) group in the r group of lysine is:

kherson [118]

Physiological pH is between 7.37 and 7.43

Lysine is a basic amino acid, which means it has two NH2 groups and one COOH group.

Lysine pKas are: 2.16, 9.06 and 10.05

At low pH (lower than the first pKa, in this case: lower than 2.16) the three groups are protoned. As you increase pH, the first group to lose its proton is the acid group, then the alpha-amino group and then the R-amino group. You will have everything non protoned at a high pH (higher than the highest pKa, in this case: 10.05).

Physiological pH is higher than the lowest pKa and lower than the middle pKa, so it’s the second case: the acid is not protoned, the R-amino is protoned and the alpha amino is protoned.

Protoned aminos are cations: NH3+.

8 0

3 years ago

What is the mass of 13 gold atoms?

Ludmilka [50]

Answer:

uuuh 4.25191 × 10-21 grams????

Explanation:

8 0

3 years ago

if 0.953 g of copper was actually recovered at the end of the entire experiment, what would be the percent yield?

GrogVix [38]

Here is the full question:

Cu(s) + 4HNO3(aq) -> Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)

1.000 g copper wire is reacted with 10 mL of concentrated nitric acid (16M). If 0.953 g of copper was actually recovered at the end of the entire experiment, what would be the percent yield?

Answer:

95.30 %

Explanation:

equation for the reaction is given as:

Cu(s) + 4HNO3(aq) -> Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)

1.00 g of Cu = $\frac{1.00}{63.54 mol of Cu}$