Answer:
(a) 0.047 g (b) 0.0016 oz (c) 0.0001 lb
Explanation:
The given mass of the sodium in the slice = 47 mg
(a) Mass has to be calculated in grams
The conversion of mg to g is shown below as:
1 mg = 10⁻³ g
So,
<u>Mass of sodium = 47 × 10⁻³ g = 0.047 g</u>
(b) Mass has to be calculated in ounces
The conversion of ounces to g is shown below as:
453.6 g = 16 oz
Or,
1 g = 16 / 453.6 oz
So,
<u>Mass of sodium = (0.047 × 16) / 453.6 oz = 0.0016 oz</u>
(c) Mass has to be calculated in pounds
The conversion of pounds to g is shown below as:
1 lb = 453.6 g
Or,
1 g = 1/ 453.6 lb
So,
<u>Mass of sodium = (0.047 × 1) / 453.6 oz = 0.0001 lb</u>
Answer:
protons: positively charged, located in the nucleus
electrons: negatively charged, located outside the nucleus
neutrons: no charge, located in the nucleus
Answer:
a number should be rounded up it is 5 or higher
Lemon juice has the highest h+ concentration. The more acidic something is the more H+ it has.
ph = 1 is the most acidic
ph = 14 is the most basic (opposite of acidic... think of soap.)
Answer:
453.6 g
Explanation:
The following data were obtained from the question:
Mole of Ag = 4.2 moles
Weight (in grams) of Ag =?
Thus, we can obtain the weight in grams of Ag by doing the following:
Mole of Ag = 4.2 moles
Molar mass of Ag = 108 g/mol
Mass of Ag =.?
Mole = mass /Molar mass
4.2 = mass of Ag /108
Cross multiply
Mass of Ag = 4.2 × 108
Mass of Ag = 453.6 g
Thus, the weight (in grams) of 4.2 moles of Ag is 453.6 g