The nearest gram is in the ones column, so we must look at the tenths column (the first number on the right of the decimal). If this number if 5 or higher then we must round up and report the value as 1.0 g or if it is lower than 5 then we report the answer as 0.0. All other numbers are irrelevant. In this case (0.[5]3525) the number we are concerned about (in the square brackets) is 5, therefore we round up and the answer is 1.0 g.
Graphite is a form of carbon, so the question is basically asking how many moles of carbon are in 18.0 grams of carbon. One gram of carbon contains 12.01 moles. This can be found on a periodic table. 18.0 grams of carbon must therefore have 18 times 12.01, or 216.18, moles of carbon.
Most will round it off to 14 grams, but anywhere between 13.5 grams to 14.5 grams is straight.
Subject to the usual provisos such as 'normal pressures' 5 grams of water cooling over this 50 degree interval, would release 5 x 50 gram calories, =250. [Beware, calories used for food calculations are 1000 times as large as the simple calories above. Often called kilogram calories or'big calories' to avoid confusion.]
One unit of salt-poor albumin typically refers to one gram of albumin solution that has been specifically formulated to have a low sodium content. This type of albumin is commonly used for patients who need fluid volume expansion without increasing their sodium load.
The number of neutrons in an atom is easily calculated by taking the mass number and subtracting the atomic number. Take for example, Uranium: the mass number on the periodic table is 238, while the atomic number is 92. Take the difference of 238 and 92 and that will be equal to the number of neutrons. 238-92=146
2g
2,223,000 grams
Round off to the nearest cent, means round off to the nearest hundredths or round off to two decimal.
4 g
if you round off to the nearest one then its 41, if you round off to the nearest ten, it is 40.
950
549 and 450 rounded off the nearest hundred is 500
96 round to the nearest ten=100
372 rounded to the nearest hundred is 400
It is 87.79 rounded off to the nearest hundredth
390
907.457 rounded off to nearest tens place is 910. If it were asked to round off to nearest "tenths" place, it would have been 907.5.