Predict possible pH range for the following solutions. 1) Antacid 2) 70 % Rubbing alcohol solution 3) 10 % Vitamin-C in

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Predict possible pH range for the following solutions.
1) Antacid
2) 70 % Rubbing alcohol solution
3) 10 % Vitamin-C in solution
4) Orange juice
5) Lysol solution
6) Table salt and water
John used an empty beaker that has a mass of 43.126 g. In a
separate jar, he had a mixture of salt and sand. He transferred two
scoops of salt and sand mixture to the beaker. The overall mass was
55.449 g. As you know salt is soluble in water, he added enough
water to the beaker with salt and sand mixture to completely
dissolve the salt. He filtered the mixture and dried what was left
in the filter. The mass of that residue was 8.200 g. Based on the
experiment calculate:
1. The mass of salt: _____
2. The mass of sand: _____
3. The mass of the mixture (salt + sand): _____
The mass of a beaker is 5.833 g. After 3.00 mL of a
certain pure liquid, is added into the beaker, the combined mass of
the beaker and the liquid sample is 8.613 g. From the data,
what is the measured density of the liquid?
For the following measured numbers, Identify the number of
significant figures .
a) 203
b) 40.01
c) 0.130
d) 0.001042
Which of the following measurements would be
considered exact?
A) 1.83 g
B) 2.1 in.
C) 32 sec.
D) 30 miles
E) 14 pennies